1.

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​

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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