Question

What is the area of this semi-circle

Answer 1

25.12 cm2

Explanation:

The area of a semicircle is half of the area of the circle. As the area of a circle is πr2. So, the area of a semicircle is 1/2(πr2 ), where r is the radius. The value of π is 3.14 or 22/7.

A = πr²/2 = 8 * π [in²] ≈ 25.1327 [in²]

Answer 2

25.1325

Explanation:

A=
`\pi`r^2

radius is half of 8

A=
`\pi`4^2

solve gets 50.265

then divide by 2

25.1325