Question

Q.5 Find the curved surface area of cylinder whose radius of circular base is 7cm and height is 25
cm?​

Answer 1

Answer:

1100cm²

Explanation:

Curved Surface area of cylinder =2πrl

r= radius =7cm

l= height =25cm

Curved Surface Area =2×22×7×25 cm²

7

=50×22 cm²

Curved Surface Area of cylinder =1100cm²

Answer 2

Answer:

If cosec theta + cot theta = k prove that cos theta = k2-1 / k2 + 1

Step-by-step explanation:

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