Question

a semicircle has 70 cm diameter find its area

Answer 1

Step-by-step explanation:

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Answer 2

QUESTION:

a semicircle has 70 cm diameter find its area.

ANSWER:

We used the formula here;

1.

$diameter = 2 \times radius$

2.

$area \: of \: semicircle circle = (\pi \times {(radius)}^{2})/2$

now come to main question;

diameter = 70 cm

then radius will be =

$\frac{70cm}{2} \\ radius = 35cm$

$\huge\red{radius = 35cm}$

area of semi-circle =

$(\frac{22}{7} \times 35 \times 35 {cm}^{2} ) /2\\ 3850 {cm}^{2}/2 = 1925 cm^2$

$\huge\red{area = 1925 {cm}^{2} }$

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