Question

Pls help!!
I don’t understand I’m not smart-

Answer 1

47.5 ft²

Explanation:

The formula to find the area of a semicircle:
`(1)/(2) * \pi * r^(2)`, where
`r` is the radius (diameter ÷ 2) and the
`\pi` is alterable.

1) Substitute the given values into the formula. Since the diameter has been given to us, we need to divide it by two for the radius (11 ÷2 = 5.5).

=
`(1)/(2) * 3.14 * 5.5^(2)`

2) Solve it.

=
`(1)/(2) * 94.985`

= 47.4925

2) Round it off to the nearest tenth.

= 47.5

Answer 2

Answer:47.5 ft²Step-by-step explanation:The formula to find the area of a semicircle: , where is the radius (diameter ÷ 2) and the is alterable.1) Substitute the given values into the formula. Since the diameter has been given to us, we need to divide it by two for the radius (11 ÷2 = 5.5).= 2) Solve it.= = 47.49252) Round it off to the nearest tenth.= 47.5