Question

The radius of a semicircle is 19.6 metres. What is the semicircle's area?

Answer 1

The area of the semicircle having a radius of 19.6 meters is

603.68
`m^(2)`.

Detailed Answer:

The formula for the area of a circle is π
`r^(2)`. Therefore, the formula for the area of a semi-circle is (
`(1)/(2)` π
`r^(2)`).When the calculation is done

`(1)/(2)` ×
`(22)/(7)` × 19.6 × 19.6 = 603.68 meters squared.

Answer 2

603.44 [in²]

Explanation:

A = πr²/2 = 192.08 * π [in²] ≈ 603.44 [in²]