Question

ample 8. The diameter of a cylinder is 7 cm and its height is 16 cm. Find
(i) lateral surface area of the cylinder.
(ii) total surface area of the cylinder.​

Answer 1

Answer:

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Answer 2

Answer:

Curve surface area= 352 cm³

Total surface area= 429cm³

Step-by-step explanation:

diameter of cylinder=7 cm

•°•radius(r). =diameter/2

=7/2 cm

Height of cylinder=16cm

(i)Ans= Curve surface Area= 2πrh

=2×22/7×7/2×16

•°•curve surface area = 352 cm³

(ii)Ans= Total surface area = 2πrh+2πr²

= 2πr(h+r)

=2×22/7×7/2(16+7/2)

=22×39/2

=11×39

•°•Total surface area= 429 cm³

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