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.
| Textbook | NCERT |
| Board | CBSE |
| Category | NCERT Solutions |
| Class | Class 7 |
| Subject | Maths |
| Chapter | Chapter 14 |
| Exercise | Symmetry Exercise 14.3 |
| Number of Questions Solved | 7 |
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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