if the perimetre of a semicircular park is 72 m find its area and radius
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Since Perimeter of semicircle = pi*r + 2r
=) pi*r + 2r = 72
=) 22/7 * r + 2r = 72
=) 36r/7 = 72
=) r = 72*7/36
=) r = 14m.
Since Area of semicircle = pi*r^2 /2
= 22/7 * 14*14 /2
= 22*14 m^2
= 308 m^2.
Hope it's helpful to u.
=) pi*r + 2r = 72
=) 22/7 * r + 2r = 72
=) 36r/7 = 72
=) r = 72*7/36
=) r = 14m.
Since Area of semicircle = pi*r^2 /2
= 22/7 * 14*14 /2
= 22*14 m^2
= 308 m^2.
Hope it's helpful to u.
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