Question

16. What is the perimeter of each of the following figures? What do you infer from
the answers?
25 cm
30 cm
25 cm
25 cm
20 cm
20 cm
30 cm
25 cm
(c)
(a)
40 cm
30 cm
30 cm
10 cm
10 cm
40 cm
40 cm
(b)
(d)​

Answer 1

Step-by-step explanation:

(a) Perimeter of square = 4 x side

= 4 x 25 = 100 cm

(b) Perimeter of rectangle = 2 x (length + breadth)

= 2 x (40 + 10)

= 2 x 50 = 100 cm

(c) Perimeter of rectangle = 2 x (length + breadth)

= 2 x (30 + 20)

= 2 x 50 = 100 cm

(d)Perimeter of triangle = Sum of all sides

= 30 cm + 30 cm + 40 cm = 100 cm

Thus, all the figures have same perimeter