Question

if the perimeter of a semicircular protractor is 88 cm find the diameter of protector​

Answer 1

perimeter of circle = 2^r

perimeter of semicircular protector = ^r

according to question

^r = 88

22/7 * r = 88

r = 88*7/22

r = 4*7

r= 28 cm

diameter = 2r

diameter = 2* 28

diameter = 56 cm

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Answer 2

Answer:

Step-by-step explanation:

2r = d

Perimeter of semicircle = 22/7 × r

Therefore r = 28

d = 56 cm

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