Maths 2 Mark Question

A rhombus has two lines of symmetry which are its diagonal.

The number of positions a figure can be rotated to, without bringing in any changes to the way it looked originally, is called its order ofrational symmetry.So, the order of rotational symmetry of an equilateral triangle is 3.

A scalene triangle has neither any line of symmetry nor a rotational symmetry.

Order of rotational symmetry of a rhombus is not possible. Therefore ithas no rotational symmetry.

The figure which has only on line of symmetry but no rotational symmetry order is an isosceles triangle.

No, only isosceles trapezium has a line of symmetry but not every trapezium.

An equilateral triangle has 3 lines of symmetry.

In the given figure, the line of symmetry has been drawn which is one. There is no rotational symmetry of this figure.

The line of symmetry of a semicircle is the perpendicular bisector of the diameter No, it has not any rotational symmetry.

1. The given figure has two lines of symmetry which has been drawn.

2. It has three orders of the rotational symmetry which are 90°, 270° and 360°.

There is one letter of the English Alphabet Z which has no line of symmetry but it has order two of rotational symmetry of 180° and 360°.

Three letters of the English Alphabet which have two lines of symmetry and rotational symmetry of order 2 are H, O and X.