What is the size of angle a?
1 answer:
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➷ Use this formula:
Area of circle =
However, as we are using 3.14 for 'pi', we can write it like this:
Area =
'r' is the radius which is 12ft
Substitute this value into the equation:
Area =
Solve:
Area = 452.16
Multiply this value by 0.75 to get the answer:
452.16 x 0.75 = 339.12
339.12 square feet is being watered
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