The radius of roller is 0.7m and it is 2m long. How much area will it cover in 10 revolutions.
Answers
Answer:
88 sq.m. is covered in 10 revolutions
Explanation :-
Radius of roller = 0.7 m
Length of roller = 2 m
Curved surface area of roller = 2πrh
= 2 × 22/7 × 0.7 × 2
=8.8 sq.m.
Area covered in 1 revolution = 8.8 sq.m.
Area covered in 10 revolutions =
8.8×10=88 sq.m.
Hence 88 sq.m. is covered in 10 revolutions.
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Answer:
For one revolution
Curved surface area=2πrh × 22/7 × 7/10
For 10 revolution
Curved surface area= 2×22×2/10×10 =88m²
Step-by-step explanation:
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