Question

perimeter and area of semicircle diameter of 35

Answer 1

radius = 35÷2 cm
perimeter = 22÷7×35÷2+35
= 55+35= 90 cm
area = 22÷7×35÷2×35÷2 = 962.5 sq cm ÷2 = 481.25 sq cm

Answer 2

$\textbf {Hey there, here is the solution.}$

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Diameter = 35 units (given)

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Find the perimeter:

Circumference of a semi-circle = 1/2 π D

Circumference of a semi-circle = 1/2 (22/7) (35) = 55 units

Perimeter = 55 + 35 = 90 units

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Find the radius:

Radius = Diameter ÷ 2 = 35 ÷ 2 = 17.5 units

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Find the area:

Area = 1/2 π r²

Area = 1/2 (22/7) (17.5)² = 481.25 units²

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Answer: The perimeter is 90 units and the area is 481.25 units²

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⭐$\textbf {Cheers }$⭐