SOLUTION: a piece of gold wire 10 cm long is made into a circle. the circumference of the circle is equal to the length of the wire. show that the area of the circle is exactly 25/pi cm squa

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Question 1063663: a piece of gold wire 10 cm long is made into a circle. the circumference of the circle is equal to the length of the wire. show that the area of the circle is exactly 25/pi cm squared
Answer by Alan3354(69443) About Me  (Show Source):
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a piece of gold wire 10 cm long is made into a circle. the circumference of the circle is equal to the length of the wire. show that the area of the circle is exactly 25/pi cm squared
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Find the radius.
Then find the area.