Question

the curved surface of a cylander of height 28cm is 352 sq cm find the diameter of base of the cylinder

Answer 1

Heya mate, Here is ur answer

Height of cylinder = 28 cm

CSA of cylinder= 2πrh

But CSA= 352

So,

2πrh=352

2×22/7 r ×28=352

$r = \frac{352 \times 7}{2 \times 22 \times 28}$


r=2464/1232

r=2 cm

Diameter of base = radius×2

=2×2

=4 cm

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@Laughterqueen

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Answer 2

Answer:Diameter=4cm

As we know,

CUrved Surface area of cylinder=2pirh

given,

Height=28cm

C.S.A Of cylinder=352sq cm

⇒352=2×22÷7×r×28

⇒352=176r

⇒r=352÷176

⇒r=2cm

we know that,diameter=2×radius

⇒d=2×2

⇒d=4cm