Question

lipsa prepared 12cylindrical lamp shades of r=2cm and ht =7cm find the area of paper used

Answer 1

Step-by-step explanation:

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Answer 2

Step-by-step explanation:

Curved surface area of a cylindrical lamp shade= 2π×r×h.

Therefore area of paper used in 1 lamp shade is 2π×2×7 = 88 sq cm

Thus area of paper used in 12 lamp shades is 88×12= 1056 sq cm

Ans:1056 sq cm of paper is used in making 12 lamp shades.