Question

find the volume of a right circular cylinder whose height is 4 cm and whose total surface area is 484 CM square

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Answer 1

$\huge\underbrace\mathfrak\pink{Answer}$

= 2 πrh + 2 πr 2

= 484 cm 2

⇒ 2 πr r + h = 484

⇒ 2 × 22 7 × r r + 4

= 484

⇒ r r + 4

= 484 × 7

Answer 2

ᴀɴsᴡᴇʀ:-

= 2 πrh + 2 πr 2

= 484 cm 2

⇒ 2 πr r + h = 484

⇒ 2 × 22 7 × r r + 4

= 484

⇒ r r + 4

= 484 × 7