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A circular flower bed of radius 7m is in the middle of a rectangular lawn of area 600m². The area of the lawn, excluding the area of the flower bed, is .............1 point578m²478m²446m²NoneQ10. The radius of a circle with circumference 66m is ............1 point21m10.5m14mNoneSubmit |
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Answer» Step-by-step explanation: area of rectangle - 600m^2 RADIUS of circular FLOWER bed - 7m area of circle= π r^2 = 22/ 7 * (7 ) ^2 = 22*7 154m^2 EXCLUDING the area of the flower bed 600m^2 - 154 m^2 = 446m^2 Q. 10 circumference of circle = 2πr 66m = 2* 22/7 * r 66m= 44/7 * r 66*7/44 = r = 10.5 m |
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