Question

area of a cover part of a cylinder is 880cm and it's diameter is 14 cm find the height of cylinder.​

Answer 1

Answer - D = 2cm

Hope it's helpful for you.

Answer 2

Given :-

• C.S.A of Cylinder = 880cm²
• Diameter of Cylinder = 14cm

To Find :-

• Height of Cylinder

Solution :-

❏ As we know that, Curved Surface Area of Cylinder is given by 2πrh or πdh.

Putting the Values :

➞ C.S.A of Cylinder = πdh

➞ 880 = 22/7 × 14 × Height

➞ 880 = 22 × 2 × Height

➞ 880 = 44 × Height

➞ 880 / 44 = Height

➞ 20cm = Height

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Verification :

⟾ C.S.A of Cylinder = πdh

⟾ C.S.A of Cylinder = 22/7 × 14 × 20

⟾ C.S.A of Cylinder = 22 × 2 × 20

⟾ C.S.A of Cylinder = 44 × 20

⟾ 880 = 880

Hence Verified

Thus Height of Cylinder is 20cm

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