Question

find the curved surface area and total surface area of the cylinder of radius 7 cm and height 10 cm​

Answer 1

CSA of cylinder is 2πrh

=2×3.14×7×10

=439.6cm^2

Volume of cylinder is πr^2h

=3.14×(7)^2×10

=31.4×49

=1538.6 cm^3

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Answer 2

Answer:

440 cm², 748 cm

Step-by-step explanation:

We have,

radius = 7 cm and height = 10 cm.

(i) Curved surface area of cylinder:

⇒ 2πrh

⇒ 2 * (22/7) * 7 * 10

⇒ 440 cm²

(ii) Total Surface area of the cylinder:

⇒ 2πr(h + r)

⇒ 2 * (22/7) * 7(10 + 7)

⇒ 2 * 22 * 17

⇒ 748 cm

Hope it helps!