The number of lines of symmetry in Fig. 12.14 is
(a) 1
(b) 3
(c) 6
(d) Infinitely many

Solution:

We know that

The line of symmetry is a line that divides an object into two identical pieces.

Let us construct the lines of symmetry for the figure given

Therefore, the figure has 3 lines of symmetry.

✦ Try This: A triangle can be constructed by taking its sides as: (a) 5.8 cm, 6.6 cm, 3.4 cm, (b) 6 cm, 2 cm, 6 cm, (c) 2.4 cm, 3.4 cm, 7.4 cm, (d) 3.2 cm, 3.3 cm, 8.5 cm

☛ Also Check: NCERT Solutions for Class 7 Maths Chapter 14

NCERT Exemplar Class 7 Maths Chapter 12 Problem 4

The number of lines of symmetry in Fig. 12.14 is: (a) 1, (b) 3, (c) 6, (d) Infinitely many

Summary:

The number of lines of symmetry in Fig. 12.14 is 3.

☛ Related Questions:

• The order of rotational symmetry in the Fig. 12.15 given below is: (a) 4, (b) 8, (c) 6, (d) Infinite . . . .
• The order of rotational symmetry in the figure 12.16 given below is: (a) 4, (b) 2, (c) 1, (d) Infini . . . .
• The name of the given solid in Fig 12.17 is: (a) triangular pyramid, (b) rectangular pyramid, (c) re . . . .