[問題] 求解一題數學
想拜託各位大大, 但我卡關應該在最後一句話, 拜託各位指教！謝謝！
http://i.imgur.com/wRjdpWw.jpg
In the design above, the area of the region between the semicircles is to
be painted green, and the area of the smaller semicircular region is to be
painted red. The amount of paint used per square foot is to be the same for
each color.
A. The amount of green paint to be used
B. The amount of red paint to be used
拜託大家了, 謝謝。
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※ 編輯: crazyshop (101.8.53.160), 05/31/2015 19:09:39
※ 編輯: crazyshop (101.8.53.160), 05/31/2015 19:09:48
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