hni1hamikensuree
hni1hamikensuree hni1hamikensuree
  • 18-07-2016
  • Mathematics
contestada

Find the radius of a circle whose area equals the area of a rectangle that measures 2 ft. by 11 ft. (Use = 22/7). . . r = SQRT ____ ft.

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meerkat18
meerkat18 meerkat18
  • 19-07-2016
The area of a rectangle is calculated through the equation, V = L x W. That of the circle is equal to V = πr². These areas should be equal,
                                  V = L x W = πr²
Substituting the known values,
                               2 ft x 11 ft = (22/7)(r²)
The value of r is sqrt 7. 
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