Find the perimeter of this semi-circle with diameter, d
= 32cm.
Give your answer as an expression in terms of
π
.

let the

radius = diameter/2= 32/2= 16cm

now

perimeter of semi circle = 1/2×22/7×r

= 1/2×22/7×16

= 25.14cm

hence perimeter of semi circle is 25 .14cm

add all the numbers and check the ones place.

the answer is 486. as the ones place is more than 4, the estimation will be the next 10 ie, 490

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step-by-step explanation:

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