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Question
A plot is in the form of rectangle ABCD having semi-circle on BC. If AB = 60m and BC = 28m, find the area of plot.
Solution
Given AB = 60m = DC [length]
BC = 28m = AD [breadth]
Radius of semicircle r =`1/2`× ๐ต๐ถ = 14๐
Area of semicircle r =`1/2`× ๐ต๐ถ = 14๐
Area of plot = (Area of rectangle ABCD) + (area of semicircle)
= (๐๐๐๐๐กโ × ๐๐๐๐๐๐กโ) +`1/2 pir^2`
= `(60 × 28) + [1/2×22/7× 14 × 14]`
= 1680 + 308 = 1988๐2
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