**ML Aggarwal CBSE Solutions Class 7 Math 14th Chapter Symmetry Exercise 14.2**

**(1)** (i) Rotational Symmetry of order 2.

(ii) Rotational Symmetry of order 2.

(iii) No Rotational Symmetry.

(iv) Rotational Symmetry of order 2.

(v) No Rotational Symmetry

(vi) Rotational Symmetry of order 4

(vii) Rotational Symmetry of order 4

(viii) No Rotational symmetry

(ix) Rotational Symmetry of order 2

(x) Rotational symmetry of order 4

(xi) Rotational symmetry of order of order 6

(xii) Rotational symmetry of order 4

(2) from the given figure, (i) and (iv) i.e. rhombus and circle have rotational symmetry more than order 1.

**(3) Name any two figures that have both line of symmetry and rotational symmetry.**

Ans. Rhombus and Equilateral Triangle

**(4) Name the quadrilaterals which have both line and rotational symmetry of order more than 1.**

Ans. Rectangle, Rhombus and Square.

**(5) Draw a rough sketch of:**

**(i) a triangle with both line and rotational symmetries of order more than 1.**

**(ii) a triangle with only of symmetry and no rotational symmetry of order more than 1.**

**(iii)a triangle with no line but rotational symmetry of order 1.**

**(iv) a quadrilateral with no line symmetry but rotational symmetry of order more than 1**

**(v) a quadrilateral with line symmetry but not rotational symmetry of order more than 1.**

**Solution: **

**(6) If a figure has two or more than two lines of symmetry, can it have rotational symmetry of order more than one?**

**(7) A figure looks exactly the same as its original after rotation of 60 degree. At what other angles will this figure apprear the same?**

**What can you say if the angle of rotation is**

**(i) 72 degree (ii) 45 degree (iii) 50 degree**

**(8) Can a figure possessing rotational symmetry have an angle of rotation of measure**

**(i) 180 degree (ii) 120 degree (iii) 90 degree (iv) 30 degree (v) 15 degree (vi) 17 degree**

**Solution: **