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State the number of lines of symmetry for the following figures:
(a) An equilateral triangle (b) An isosceles triangle (c) A scalene triangle
(d) A square (e) A rectangle (f) A rhombus (g) A parallelogram
(h) A quadrilateral (i) A regular hexagon (j) A circle

Solution:

When a figure is folded in half, along its line of symmetry, both the halves match each other exactly. This line of symmetry is called the axis of symmetry.

(a)It has three lines of symmetry.

(b)It has one line of symmetry.

(c)It has no line of symmetry.

(d)It has four lines of symmetry.

(e)It has two lines of symmetry.

(f)It has two lines of symmetry.

(g)It has no line of symmetry.

(h)It has no line of symmetry.

(i)It has six lines of symmetry.

(j)It has infinitely many lines of symmetry

☛ Check: NCERT Solutions Class 7 Maths Chapter 14

Video Solution:

State the number of lines of symmetry for the following figures: (a) An equilateral triangle (b) An isosceles triangle (c) A scalene triangle (d) A square (e) A rectangle (f) A rhombus (g) A parallelogram (h) A quadrilateral (i) A regular hexagon (j) A circle

Maths NCERT Solutions Class 7 Chapter 14 Exercise 14.1 Question 7

Summary:

The number of lines of symmetry for the following figures:(a) An equilateral triangle: It has three lines of symmetry, (b) An equilateral triangle: It has one line of symmetry, (c) A scalene triangle: It has no line of symmetry, (d) A square: It has four lines of symmetry, (e) A rectangle: It has two lines of symmetry, (f) A rhombus: It has two lines of symmetry, (g) A parallelogram: It has no line of symmetry, (h) A quadrilateral: It has no line of symmetry, (i) A regular hexagon: It has six lines of symmetry, (j) A circle: It has infinitely many lines of symmetry

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