Question

What is the curved surface area andd Totl Area of cylinder with radius 7 cm and heivht 10 cm .
answer please​

Answer 1

Answer:

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your answer

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Answer 2

Correct Question :

›»› What is the curved surface area and total surface area of cylinder with radius 7 cm and height 10 cm.

Answer :

›»› The curved surface area of cylinder is 440 cm².

›»› The total surface area of cylinder is 748 cm².

Given :

• Radius of cylinder (r) = 7 cm.
• Height of cylinder (h) = 10 cm.

To Find :

• Curved surface area of cylinder.
• Total surface area of cylinder.

Solution :

For Curved surface of cylinder.

As we know that

→ CSA of cylinder = 2πrh

→ CSA of cylinder = 2 * 22/7 * 7 * 10

→ CSA of cylinder = 2 * 22/7 * 70

→ CSA of cylinder = 2 * 22 * 10

→ CSA of cylinder = 44 * 10

→ CSA of cylinder = 440

║Hence, the curved surface area of cylinder is 440 cm².║

For total surface area of cylinder.

As we know that

→ TSA of cylinder = 2πr(r + h)

→ TSA of cylinder = 2 * 22/7 * 7(7 + 10)

→ TSA of cylinder = 2* 22/7 * 7(17)

→ TSA of cylinder = 2 * 22/7 * 119

→ TSA of cylinder = 2 * 22* 17

→ TSA of cylinder = 44 * 17

→ TSA of cylinder = 748

║Hence, the total surface area of cylinder is 748 cm².║