Question

8. The total surface area of a circular cylinder is 1320 cm and its radius is 10 cm. Find the height
of the cylinder​

Answer 1

Answer:

thanks.keep questioningn

Answer 2

Given:-

• Total surface area of circular cylinder = 1320cm.
• Radius = 10cm.

To find:-

• The height of cylinder.

Solution:-

We know :

❥ CSA of cylinder = 2πr(r+h)

Where ,

r = radius of cylinder

h = height of cylinder.

According to question :

⇒ 2πr(r+h) = 1320

⇒ 2×22/7 ×10 (10+h)=1320

⇒ 440/7 (10+h) = 1320

⇒ 10+h = 1320 × 7/440

⇒ 10+h=21

⇒ h = 11 cm.

And we are done !

∴ Height of cylinder is 11cm.

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