how to find the area of a semicircle if its diameter is given 12.7
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Hi there !!
We are asked to find the diameter of the semi circle with a given diameter.
Diameter = 2 x radius = 12.7 cm
Radius = 12.7 / 2
= 6.35 cm
So , to find the area of a full circle we use the formula πr²
So ,
area of a semi circle = πr² ÷ 2
=[ 22 / 7 x 6.35 x 6.35] / 2
= 126.727857 / 2
= 63.363 ( approx .)
We are asked to find the diameter of the semi circle with a given diameter.
Diameter = 2 x radius = 12.7 cm
Radius = 12.7 / 2
= 6.35 cm
So , to find the area of a full circle we use the formula πr²
So ,
area of a semi circle = πr² ÷ 2
=[ 22 / 7 x 6.35 x 6.35] / 2
= 126.727857 / 2
= 63.363 ( approx .)
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