Question

Find the radius whose perimeter is 22 cm

Answer 1

Answer:

r = 3.5 cm

Step-by-step explanation:

2 pi r = 22 cm

r = 22 * 7 / 2 * 22

So, r = 7/2 or 3.5 cm

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Answer 2

Answer:

3.5

Step-by-step explanation:

perimeter of a circle = 2pi*r

p = 22

and p = 2pi*r

p = 2* 22/7 * r

22 = 2*22/7* r

r = 22*7/2*22

r = 7/2

r = 3.5