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35 votes
35 votes
Find the area of this semi-circle with radius,

r
= 24cm.
Give your answer rounded to 1 DP.

User Henrique Ferrolho
by
2.7k points

1 Answer

22 votes
22 votes

Answer:

904.8 cm²

Explanation:

The formula for the area of a circle is ...

A = πr²

The area of a circle with radius 24 cm is ...

A = π(24 cm)² = 576π cm²

A semicircle is half a circle, so its area will be ...

(1/2)(576π cm²) = 288π cm² ≈ 904.8 cm² . . . area of the semicircle

User Aaron Cohn
by
3.1k points