Question

a wire of length 132 cm is bent to form a circle. find the perimeter, radius and diameter of the circle so formed.

PLEASE EXPLAIN STEP BY STEP ​.

Answer 1

Answer:

Length of wire = Perimeter of circle = 132 cm

2πr = Perimeter ( Circumference) of circle

2πr = 132

2×22/7×r = 132

22/7 × r = 132/2

r = 132/2 × 7/22

r = 21 cm

Diameter = 21 × 2 = 42 cm

Answer 2

Answer:

Here's your answer.

Step-by-step explanation:

length of wire is 132 cm. Hence the perimeter of the circle will also be the same.

C = $2\pi r$  C stands for circumference

132 = $2\pi r$

132 = 2 x 22/7 x r

132 = 44/7 x r

r = 132 x 7/44

r = 3 x 7

r = 21 cm

d = 2r

d = 21 x 2

d = 42

Perimeter = 132 cm

Radius = 21 cm

diameter = 42 cm

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