6. The length of a chain used as the boundary of a semicircular park is
108 m. Find the area of the park.
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Start by finding perimeter of semi circular park ... it is given as 108 m ... therefore
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Answer:
1386m^2
Step-by-step explanation:
Given,
Length of semicircular park = 108m
So, perimeter of the semicircular park is 108m
then,
πr+d=108m
=>πr+2r=108
=>r(π+2)=108
=>r=108/(π+2)
=>r=108/(36/7)
=>r=108×7/36
=>r=21m
Now,
Area of the park=πr^2
=22/7×21^2
=22/7×21×21
=63×22
= 1386m^2
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