Find the radius and area of semi circle whose semi perimiter is 72cm
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Answer:
Step-by-step explanation:
Perimeter of circle = 72m
Let r be the radius of circle.
2πr/2 + 2r = 72
πr + 2r = 72
r = 72/π + 2
r = 72/(22/7 + 2)
r = 14m Ans.
Area of circle = πr²/2
= 22/7*14*14/2
= 308m² Ans.
Ans.) The area and radius of circular park is 308m² and 14m
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