Question

9. The C.S.A of a right circular cylinder of height 14 cm is 88 cm find the diameter of the base of the cylinder​

Answer 1

Answer:

Given , The height of cylinder =14cm

and , the curved surface area of cylinder =88cm

2

we know that ,

the curved surface area of cylinder =2πrh

and 2r=d

here , r=radius of cylinder , d=diameter of cylinder and h=height of cylinder

so , the curved surface area of cylinder =πdh =88cm

2

π×d×14=88

7

22

×d×14=88

d=2cm

so, the diameter of the cylinder is 2cm

.

.

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Answer 2

Answer:

$2 \: cm$

Explanation:

Height (h) of cylinder = 14cm

Let the diameter of cylinder be d.

Curved Surface Area of Cylinder = 88cm^2

⇒2πrh = 88cm^2

⇒πdh = 88 cm square. (d = 2r)

⇒22/7 × d × 14 = 88 cm

⇒d = 2 cm

Therefore, the diameter of the base of the cylinder is 2 cm.