1 Answer

Ljtomev · Answer 1 · 2023-10-16T16:05:14+0000

Circumference = 2πr

where c is the circumference and r is the radius

π = 22/7

$18\text{ 1/2= 2}*(22)/(7)* r$
(37)/(2)=(44r)/(7)

cross-multiply

Divide both-side by 88

r= 2.94 cm

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