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A circular spinner for a game has a radius of 10 cm. The probability of winning on one spin of this spinner is 2/5. What is the area, in sq cm, of the WIN sector? Express your answer in terms of pi.
 

 Dec 16, 2020
 #1
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nvm, i got the answer, it was 40
 

 Dec 16, 2020
 #2
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That answer makes sense. 

The total area of a circle is pi * radius^2, the area of the total spinner is 100pi.

2/5 of this is success, so the answer is 2/5 * 100pi = 40 pi

 Dec 16, 2020

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