SOLUTION: The ratio of AB to BC is 1:3. what is the ratio of the shaded area to the unshaded area in the figure?https://media.discordapp.net/attachments/742028999940767776/838939172383359

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Question 1179703: The ratio of AB to BC is 1:3. what is
the ratio of the shaded area to the
unshaded area in the figure?https://media.discordapp.net/attachments/742028999940767776/838939172383359016/unknown.png

Answer by ikleyn(52786)   (Show Source): You can put this solution on YOUR website!
.

To solve the problem, use the formulas for the circle/semi-circle areas.



As soon as you got this key idea from me (the HINT),
the rest is just boring routine arithmetic.




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