Question

Find the curved surface area and the total surface area of cylinder if its volume is 22176cm^3 and height is 36 cm.

Answer 1

Answer:

Given,

Volume = 22176cm³

Height = 36 cm

Find,

The curbed surface area

Step-by-step explanation:

SOLUTION

SO,

Let r be the radius of the base of the cylinder .

We know that

V = πr²h Or r² = V / πh

=> r² = 7*22176 / 22*36 cm² = 196 cm²

=> r = √196 cm

=> r = 14 cm

=> Curved surface area of the cylinder = 2πrh

= 2*22/7*14*36 cm²

= 3168 cm²

and total surface area of the cylinder = 2πr (r+h)

= 2*22/7*14*(14+36) cm²

= 4400 cm²

Hence,

curved surface area is 4400 cm²

Answer 2

Answer:

Radius of cylinder (r)=7cm

Height of cylinder (h)=15cm

Curved Surface Area =2πrh

=2×(22/7)×7×15

=660cm

2

Total Surface Area =2πr(h+r)

=2×(22/7)×7(15+7)

=2×22×22

=968cm

2

hope it helps

if found helpful mark it as brainiliest and follow plz