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From a circular sheet of a radius of 14 cm, a circle of radius 7 cm is removed. Find the area of the remaining sheet. |
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Answer» ONG>Given data : A circle of radius 7 cm is removed from a circular sheet of radius 14 cm. To FIND : Find the area of the remaining sheet ? Solution : Here we use formula of area of circle, ⟹ Area of circle = πr² {Here, r = radius and π = 22/7 (3.14)} ⟹ Area of circle = 22/7 * (7)² ⟹ Area of circle = 22/7 * 49 ⟹ Area of circle = 22 * 7 ⟹ Area of circle = 154 cm² Similarly, ⟹ Area of circular sheet = πr² ⟹ Area of circular sheet =22/7 * (14)² ⟹ Area of circular sheet = 22/7 * 196 ⟹ Area of circular sheet = 22 * 28 ⟹ Area of circular sheet = 616 cm² Now, ⟹ Area of remaining sheet = Area of circular sheet - Area of circle ⟹ Area of remaining sheet = 616 - 154 ⟹ Area of remaining sheet = 462 cm² Answer : Area of remaining circular sheet is 462 cm². Learn more : a hollow cylindrical PIPE has inner circumference 44 dm and outer 45 dm. Find the cost of painting it from both SIDES (i... a circular flower bed is surrounded by a path 4m wide the DIAMETER of a flower bed is 66m what is the area of path. |
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