Question 11 Mark
Tell whether figure has rotational symmetry. Write yes or no. 
Answer
View full question & answer→Yes.
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Question 21 Mark
A triangular prism has __________ faces, __________ edges and __________ vertices.
Answer
View full question & answer→A triangular prism has five faces, nine edges and six vertices.Solution:
A triangular prism has five faces, nine edges and six vertices.
A triangular prism has five faces, nine edges and six vertices.
Question 31 Mark
Two dimensional figures are also called plane figures.
Answer
View full question & answer→$2-D$ figures are also called plane figures.
Question 41 Mark
Which of the following figure do not have line symmetry?
Answer
View full question & answer→The given figure has no line of symmetry.
Question 51 Mark
Line of symmetry for an angle is its __________.
Answer
View full question & answer→ Line of symmetry for an angle is its angle bisector. 
Solution:
Line of symmetry for an angle is its angle bisector. Question 61 Mark
Out of __________ faces of a square pyramid, __________ are triangles and __________ is/ are squares.
Answer
View full question & answer→Out of $5$ faces of a square pyramid, $4$ are triangles and $1$ is/ are squares.
Question 71 Mark
A cylinder has no vertex.
Answer
View full question & answer→A cylinder has $3$ faces $- 2$ circle ones and a rectangle. It has $2$ edges and no vertices (no corners). Hence, the given statement is true.
Question 81 Mark
A triangular prism has $5$ faces, $9$ edges and $6$ vertices.
Answer
View full question & answer→The given statement is true. The figure below shows a triangular prism.
Question 91 Mark
An isometric sketch does not have proportional length.
Answer
View full question & answer→False.Solution:
An isometric sketch always have proportional length.
An isometric sketch always have proportional length.
Question 101 Mark
Draw the top, side and front views of the solids given below in Figure: 
Answer
View full question & answer→For given figure 
Question 111 Mark
Draw all lines of symmetry for the following figure as given below.
Answer
View full question & answer→ No line of symmetry.
Question 121 Mark
Draw the nets of the following:Cuboid.
Answer
Net for cuboid.
View full question & answer→Net for cuboid.Question 131 Mark
is a net of a __________. Circumference of circle = ______.Answer
is a net of a 
. Circumference of circle = 
View full question & answer→ is a net of a . Circumference of circle = Question 141 Mark
The flag of Japan is shown below. How many lines of symmetry does the flag have? 
Answer
View full question & answer→Japan’s flag has two line of symmetry which is as shown below: 
Question 151 Mark
Order of rotational symmetry of a circle is __________.
Answer
View full question & answer→Since, the number of times a figure fits onto itself in one complete rotation is called the order of rotational symmetry. Order of rotational symmetry of a circle is $2.$
Question 161 Mark
In the figure of a cube.
Give all the edges that are perpendicular to edge $AB.$
Give all the edges that are perpendicular to edge $AB.$
Answer
View full question & answer→The edges that are perpendicular to edge $AB$ are as follows $AE, BF, AD$ and $BC.$
The edges are highlighted in given figure:
The edges are highlighted in given figure:
Question 171 Mark
The number of lines of symmetry of a regular polygon is equal to the vertices of the polygon.
Answer
View full question & answer→True.Solution:
The number of lines of symmetry of a regular polygon is equal to the vertices of the polygon.
The number of lines of symmetry of a regular polygon is equal to the vertices of the polygon.
Question 181 Mark
The net given below in Fig can be used to make a cube.
$1.$ Which edge meets $AN?$
$2.$ Which edge meets $DE?$
$1.$ Which edge meets $AN?$
$2.$ Which edge meets $DE?$
Answer
View full question & answer→$1.$ The given net of a cube shows that edge $GH$ meets edge $AN.$
$2.$ The given net of a cube shows that edge $DC$ meets edge $DE.$
$2.$ The given net of a cube shows that edge $DC$ meets edge $DE.$
Question 191 Mark
Order of rotational symmetry of a rhombus is four.
Answer
View full question & answer→False.Solution:
Order of rotational symmetry of a rhombus is two. So the given statement is false.
Order of rotational symmetry of a rhombus is two. So the given statement is false.
Question 201 Mark
An equilateral triangle has six lines of symmetry.
Answer
View full question & answer→False.Solution:
Since, in an equilateral triangle, there are three lines of symmetry along the three medians of the triangle.
Since, in an equilateral triangle, there are three lines of symmetry along the three medians of the triangle.
Question 211 Mark
Which capital letters of English alphabet have no line of symmetry$?$
Answer
View full question & answer→The capital letters of English alphabet have no line of symmetry are as follows: $F, G, J, L, N, R, Q, S$ and $Z.$
Question 221 Mark
Out of __________ faces of a rectangular pyramid __________ are triangles and base is __________.
Answer
View full question & answer→Out of $5$ faces of a rectangular pyramid $4$ are triangles and base is rectangle.
Question 231 Mark
An isosceles trapezium has one line of symmetry.
Answer
View full question & answer→ True. 
Solution:
Isosceles trapezium has only one line of symmetry along the line segment joining the mid-points of two parallel sides which is shown in figure. Question 241 Mark
In the figure of a cube.
Give four vertices that do not all lie in one plane.
Give four vertices that do not all lie in one plane.
Answer
View full question & answer→$A, B, G$ and $H$ are four vertices that do not all lie in one plane. The vertices are highlighted in given figure: 
Question 251 Mark
A triangular pyramid has __________ faces, __________ edges and __________vertices.
Answer
View full question & answer→A triangular pyramid has $4$ faces, $6$ edges and $4$ vertices.
Question 261 Mark
Draw the nets of the following: Tetrahedron.
Answer
Net for tetrahedron.
View full question & answer→Net for tetrahedron.Question 271 Mark
Which of the following figure do not have line symmetry?
Answer
View full question & answer→The given figure has no line of symmetry.
Question 281 Mark
Tell whether figure has rotational symmetry. Write yes or no.
Answer
View full question & answer→Yes.
Question 291 Mark
The common portion of two adjacent faces of a cuboid is called __________.
Answer
View full question & answer→The common portion of two adjacent faces of a cuboid is called edge.Solution:
The common portion of two adjacent faces of a cuboid is called edge.
The common portion of two adjacent faces of a cuboid is called edge.
Question 301 Mark
__________ is a figure that has neither a line of symmetry nor a rotational symmetry.
Answer
View full question & answer→Scalene Triangle is a figure that has neither a line of symmetry nor a rotational symmetry.Solution:
Scalene Triangle has all sides unequal and hence it has not lines of symmetry or rotational symmetry. Scalene Triangle is a figure that has neither a line of symmetry nor a rotational symmetry.
Scalene Triangle has all sides unequal and hence it has not lines of symmetry or rotational symmetry. Scalene Triangle is a figure that has neither a line of symmetry nor a rotational symmetry.
Question 311 Mark
In the figure of a cube.
Which three faces form the vertex $A?$
Which three faces form the vertex $A?$
Answer
View full question & answer→The three faces which form the vertex $A$ are $ABFE, ABCD$ and $ADHE.$ Faces are highlighted in the given figure: 
Question 321 Mark
Draw the net of a square pyramid with base as square of side $4\ cm$ and slant edges $6\ cm.$
Answer
View full question & answer→The net of such square pyramid will be 
Question 331 Mark
Rectangular prism and cuboid refer to the same solid.
Answer
View full question & answer→True.Solution:
The given statement is true. Rectangular prism and cuboid refer to the same solid. As shows before:
The given statement is true. Rectangular prism and cuboid refer to the same solid. As shows before:
Question 341 Mark
Draw an isometric view of a cuboid $6\ cm × 4\ cm × 2\ cm.$
Answer
Isometric view of a cuboid $= 6\ cm \times 4\ cm \times 2\ cm$
$= l \times b \times h$
View full question & answer→Isometric view of a cuboid $= 6\ cm \times 4\ cm \times 2\ cm$
$= l \times b \times h$
Question 351 Mark
While rectangle is a $2-D$ figure, cuboid is a $3-D$ figure.
Answer
View full question & answer→A rectangle is a $2-D$ figure and cuboid is a $3-D$ figure.
Question 361 Mark
In the figure of a cube.
Which edge is the intersection of faces $EFGH$ and $EFBA?$
Which edge is the intersection of faces $EFGH$ and $EFBA?$
Answer
View full question & answer→From the figure it is observed that $EF$ is the intersection between faces $EFGH$ and $EFBA.$ The edge $EF$ is highlighted in figure:
Question 371 Mark
Draw a net of a cuboid having same breadth and height, but length double the breadth.
Answer
View full question & answer→Required net of a cuboid will be 
Question 381 Mark
A rectangular pyramid has $5$ rectangular faces.
Answer
View full question & answer→A rectangular pyramid has $1$ rectangular face and $4$ triangular faces.
Question 391 Mark
Rotation turns an object about a fixed point which is known as centre of rotation.
Answer
View full question & answer→True.Solution:
Centre of rotation turns an object about a fixed point.
Centre of rotation turns an object about a fixed point.
Question 401 Mark
A parallelogram has __________ line of symmetry.
Answer
View full question & answer→A parallelogram has no line of symmetry.Solution:
A parallelogram has no line of symmetry.
A parallelogram has no line of symmetry.
Question 411 Mark
Draw all lines of symmetry for the following figure.
Question 421 Mark
A tetrahedron has $3$ triangular faces and $1$ rectangular face.
Answer
View full question & answer→A tetrahedron has $4$ triangular faces.
Question 431 Mark
Trace figure. Then draw all lines of symmetry, if it has. 
Question 441 Mark
A sphere has __________vertex, __________edge and __________curved surface.
Answer
View full question & answer→A sphere has $0$ vertex, $0$ edge and $1$ curved surface.
Question 451 Mark
The solid shapes are of two-dimensional.
Answer
View full question & answer→The solid shapes are of $3-$dimensional.
Question 461 Mark
In the figure of a cube.
Which vertex is formed by the faces $ABCD, ADHE$ and $CDHG?$
Which vertex is formed by the faces $ABCD, ADHE$ and $CDHG?$
Answer
View full question & answer→Vertex $D$ is formed by the faces $ABCD, ADHE$ and $CDHG.$
$D$ is highlighted in given figure:
$D$ is highlighted in given figure:
Question 471 Mark
Order of rotational symmetry of a rectangle is __________.
Answer
View full question & answer→ Order of rotational symmetry of a rectangle is two. 
Solution:
Order of rotational symmetry of a rectangle is two. Question 481 Mark
Isometric sheet divides the paper into small isosceles triangles made up of dots or lines.
Answer
View full question & answer→ False.
Solution:
Isometric sheet divides the paper into small equilateral triangles made up of dots or lines.
So the given statement is false.
Question 491 Mark
Draw all lines of symmetry for the following figure.
Question 501 Mark
Triangle with length of sides as $5\ cm, 6\ cm$ and $11\ cm$ can be constructed.
Answer
View full question & answer→The given statement is false.
For a triangle the sum of two sides should be greater than the third side.
For a triangle the sum of two sides should be greater than the third side.