Question 11 Mark
In a quadrilateral, define the following: Opposite angles.
Answer
View full question & answer→Opposite anglesThe angles which are not adjacent are called opposite angles.
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23 questions · self-marked practice — reveal the answer and mark yourself.
Question 21 Mark
Complete the following, so as to make a true statement: A diagonal of a quadrilateral is a line segment that joins two ...... vertices of the quadrilateral.
Answer
View full question & answer→A diagonal of a quadrilateral is a line segment that joins two opposite vertices of the quadrilateral.
Question 31 Mark
Complete the following, so as to make a true statement: The sum of the angles of a quiadrilateral is ....... right angles.
Answer
View full question & answer→The sum of the angles of a quadrilateral is four right angles.
Question 41 Mark
Complete the following, so as to make a true statement: The measure of each angle of a convex quadrilateral is $..... 180^\circ .$
Answer
View full question & answer→The measure of each angle of a convex quadrilateral is less than $180^\circ .$
Question 51 Mark
Complete the following, so as to make a true statement: The sum of the angles of a quadrilateral is ..........
Answer
View full question & answer→The sum of the angles of a quadrilateral is $360^\circ .$
Question 61 Mark
Complete the following, so as to make a true statement: A quadrilateral has ....... diagonals.
Answer
View full question & answer→A quadrilateral has two diagonals.
Question 71 Mark
Complete the following, so as to make a true statement: A point is in the interior of a convex quadrilateral, if it is in the ..... of its two opposite angles.
Answer
View full question & answer→A point is in the interior of a convex quadrilateral, if it is in the interiors of its two opposite angles.
Question 81 Mark
In a quadrilateral, define the following: Exterior.
Answer
View full question & answer→ExteriorThe part of the plam made up by all points as the not enclosed by the quadrilateral, is called its exterior.
Question 91 Mark
Complete the following, so as to make a true statement: A quadrilateral has ...... angles.
Answer
View full question & answer→A quadrilateral has four angles.
Question 101 Mark
Complete the following, so as to make a true statement: The number of pairs of adjacent angles of a quadrilateral is ............
Answer
View full question & answer→The number of pairs of adjacent angles of a quadrilateral is four.
Question 111 Mark
In a quadrilateral, define the following: Adjacent Angles.
Answer
View full question & answer→Adjacent AnglesThe angles having a common arm (side) are called adjacent angles.
Question 121 Mark
In a quadrilateral, define the following: Sides.
Answer
View full question & answer→SidesIn a quadrilateral $ABCD,$ the four line segments $AB, BC, CD$ and $DA$ are called its side quadrilateral.
Question 131 Mark
Complete the following, so as to make a true statement: A quadrilateral is convex if for each side, the remaining .......... lie on the same side of the line containing the side.
Answer
View full question & answer→A quadrilateral is convex if for each side, the remaining vertices lie on the same side of the line containing the side.
Question 141 Mark
In a quadrilateral, define the following: Diagonals.
Answer
View full question & answer→DiagonalsThe line segment joining the opposite vertices is called digonal. A quadrilateral has two diagonals.
Question 151 Mark
Complete the following, so as to make a true statement: A quadrilateral has ....... vertices, no three of which are .........
Answer
View full question & answer→A quadrilateral has four vertices, no three of which are collinear.
Question 161 Mark
In a quadrilateral, define the following: Adjacent sides.
Answer
View full question & answer→Adjacent sidesIf two sides of a quadrilateral have a common end-point, these are called adjacent sides.
Question 171 Mark
In a quadrilateral, define the following: Opposite sides.
Answer
View full question & answer→Opposite sidesIf two sides do not have a common end-point of a quadrilateral, they are called opposite sides.
Question 181 Mark
Complete the following, so as to make a true statement: A quadrilateral has ....... sides.
Answer
View full question & answer→A quadrilateral has four sides.
Question 191 Mark
In a quadrilateral, define the following: Vertices.
Answer
View full question & answer→VerticesThe ends points are called the vertices of the quadrilateral. Here in the figure $A, B, C$ and $D$ are its vertices.
Question 201 Mark
In a quadrilateral, define the following: Angles.
Answer
View full question & answer→AnglesA quadrilateral has four angles which are at their vertices. In the figure, $\angle\text{A}$, $\angle\text{B}$, $\angle\text{C}$, and $\angle\text{D}$ are its angles.
Question 211 Mark
In a quadrilateral, define the following: Interior.
Answer
View full question & answer→InteriorThe region which is surrounded by the sides of the quadrilateral is called its interior.
Question 221 Mark
Complete the following, so as to make a true statement: In a quadrilateral the point of intersection of the diagonals lies in ........ of the quadrilateral.
Answer
View full question & answer→In a quadrilateral the point of intersection of the diagonals lies in the interior of the quadrilateral.
Question 231 Mark
Complete the following, so as to make a true statement: The number of pairs of opposite angles of a quadrilateral is ............
Answer
View full question & answer→The number of pairs of opposite angles of a quadrilateral is two.