Question

state the formula for the area A of semi circle of radius r

Answer 1

ⓗⓔⓨ ⓕⓡⓘⓔⓝⓓ

ⓗⓔⓡⓔ ⓘⓢ ⓨⓞⓤⓡ

ⓐⓝⓢⓦⓔⓡ



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Area of the circle =

$\pi \: r {}^{2}$



so, area of the semicircle is half of it :-

so, area =


$\frac{1}{2} \pi \: r {}^{2}$



Hope it helps you


$<b > prabhudutt$

Answer 2

Area of semi-circle:

A = πr²

     ------

        2

(As a semi-circle is half the area of a sphere)