16π
Step-by-step explanation:
The area within a circle is given by the formulae;
πr²
Since this circle is part of a full circle will multiply the area by teh appropriate fraction;
90/360 = ¼
¼ πr²
r = 8 according to the illustration
¼ π*8²
1/4 * π * 64
= 16π
Area = 16π
Learn More:
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