# NCERT Solutions for Class 7 Maths Chapter 14 Symmetry Ex 14.3

Here, Below you all know about NCERT Solutions for Class 7 Maths Chapter 14 Symmetry Ex 14.3 Question Answer. I know many of you confuse about finding this Chapter 14 Symmetry Ex 14.3 Of Class 7 NCERT Solutions. So, Read the full post below and get your solutions.

## NCERT Solutions for Class 7 Maths Chapter 14 Symmetry Ex 14.3

NCERT TEXTBOOK EXERCISES

Question 1. Name any two figures that have both line symmetry and rotational symmetry.

Solution:

Two figures that have both line symmetry and rotational symmetry are an equilateral triangle and a circle.

Question 2. Draw, wherever possible, a rough sketch of

(i) a triangle with both line and rotational symmetry of order more than 1.
(ii) a triangle with only line symmetry and no rotational symmetry of order more than 1.
(iii) a quadrilateral with rotational symmetry of order more than 1 but not a line symmetry.
(iv) a quadrilateral with line symmetry but not a rotational symmetry of order more than 1.

Solution:

(i) An equilateral triangle has 3 lines of symmetry and rotational symmetry of order 3.

(ii) An isosceles triangle has only one line symmetry but no rotational symmetry of order more than 1.

(iii) A parallelogram has no line of symmetry but has a rotational symmetry of order 2.

(iv) An isosceles trapezium has one line of symmetry but no rotational symmetry of order more than 1.

Question 3. If a figure has two or more lines of symmetry, should it have rotational symmetry of order more than 1?

Solution:

When a figure has two or more lines of symmetry, then the figure should have rotational symmetry of order more than 1.

Question 4. Fill in the blanks:

Solution:

Question 5. Name the quadrilaterals which have both line and rotational symmetry of order more than 1.

Solution:

The name of quadrilaterals having both line and rotational symmetry is square.

Question 6. After rotating by 60° about a centre, a figure looks exactly the same as its original position. At what other angles will this happen for the figure?

Solution:

The other angles are 120°, 180°, 240°, 300°, and 360°.

Question 7. Can we have a rotational symmetry of order more than 1 whose angle of rotation is

(i) 45°?
(ii) 17°?

Solution:

(i) Yes

(ii) No

## NCERT Solutions for Class 7 Maths Chapter 14 Symmetry Ex 14.3 PDF

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