a cylinder has radius 4.2 cm and height 30cm. find the surface area of the cylinder, if it is closed at both ends.
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Answered by
46
Given:
Radius of Cylinder= 4.2 cm
Height of Cylinder= 30 cm
Surface of Cylinder (both ends are closed) = 2πrh + 2πr²
Surface of Cylinder= 2πr(h+r)
Surface of Cylinder= 2×(22/7) × 4.2 (30+4.2)
= 44×.6(34.2)
= 26.4(34.2)
Surface of Cylinder= 902.88 cm²
Hence, the surface area of the cylinder is 902.88 cm²
Hope this will help you...
Radius of Cylinder= 4.2 cm
Height of Cylinder= 30 cm
Surface of Cylinder (both ends are closed) = 2πrh + 2πr²
Surface of Cylinder= 2πr(h+r)
Surface of Cylinder= 2×(22/7) × 4.2 (30+4.2)
= 44×.6(34.2)
= 26.4(34.2)
Surface of Cylinder= 902.88 cm²
Hence, the surface area of the cylinder is 902.88 cm²
Hope this will help you...
Answered by
10
Answer:
Given:
Radius of Cylinder= 4.2 cm
Height of Cylinder= 30 cm
Surface of Cylinder (both ends are closed) = 2πrh + 2πr²
Surface of Cylinder= 2πr(h+r)
Surface of Cylinder= 2×(22/7) × 4.2 (30+4.2)
= 44×.6(34.2)
= 26.4(34.2)
Surface of Cylinder= 902.88 cm²
Hence, the surface area of the cylinder is 902.88 cm²
Hope this will help you...
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