SOLUTION: if the diameter of a circular piece of sheet metal is 1 1/2 feet, then what is the area in square inches

Question 214260: if the diameter of a circular piece of sheet metal is 1 1/2 feet, then what is the area in square inches
Found 2 solutions by Alan3354, rfer:
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
Dia = 18 inches
r = 9 inches
Area = pi*r^2 = 81*pi sq inches
A =~ 254.47 sq inches

Answer by rfer(16322) (Show Source): You can put this solution on YOUR website!
A=1/4pid^2
1.5 ft * 12in/ft=18
A=1/4*22/7(18)^2
A=22/288324/1=7128/28=254.57 sq in
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