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

Pls help!! I don’t understand I’m not smart--example-1
User Navigator
by
3.2k points

2 Answers

4 votes

Answer:

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

User Aravind Vemula
by
3.2k points
6 votes

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

User Frazras
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3.4k points