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A 20° sector in a circle has an area of 21.5π yd². What is the area of the circle?

2 Answers

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A full circle is 360 degrees, so 20 is 1/18 of that. The total area will be 18 times as big, ie., 18 × 21.5π yd² = 387π yd².

Unclear why the yd² is in here... did you leave anything out?
User Harsha R
by
7.9k points
2 votes

The answer is 1215.18

User Goji
by
7.9k points
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