Asked by Rahul

A rectangular strip 25cm*7cm is rotated about the longer side. find the total surface area of the solid thus generated.

Answers

Answered by Reiny
Take a small rectangular piece of paper, such as a business card, hold a finger on the end of the longer side and rotate the card.
What do you notice ?
Answered by Rahul
1408 cm²

Answered by Anita Poonia
Nice
Aao
Answered by Satyam
You do practically
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