SOLUTION: The radius of a circle is 7 feet. What is the area of a sector bounded by a 180° arc?

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Question 1155112: The radius of a circle is 7 feet. What is the area of a sector bounded by a 180° arc?
Found 3 solutions by MathLover1, MathTherapy, josgarithmetic:
Answer by MathLover1(20849) About Me  (Show Source):
You can put this solution on YOUR website!

The radius of a circle is 7 feet.
=>the area of a circle is %287ft%29%5E2%2Api=49pift%5E2
the area of a sector bounded by a 180° arc is 1%2F2 of total area
%2849pift%5E2%29%2F2=24.5ft%5E2

Answer by MathTherapy(10552) About Me  (Show Source):
You can put this solution on YOUR website!

The radius of a circle is 7 feet. What is the area of a sector bounded by a 180° arc?
HINT: The area of that sector is NOT 24.5 ft2

Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
pi%2A7%5E2%2A%28180%2F360%29
pi%2A49%281%2F2%29
%2849%2F2%29pi
%2824%261%2F2%29pi-------square feet