a cylindrical roller is of length 2m and diameter 84cm. find the area covered by it in 300 revolutions
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Answered by
10
h = 2 m
d = 84 cm = 0.84 m
r = 0.42 m
Curved surface area = 2πrh
= 2 × 22/7 × 42/100 × 2
= 5.28 sq. m
Revolutions made = 7920/5.28 = 1500
Hope this helps!!!
Plsss make it the brainliest!!!
d = 84 cm = 0.84 m
r = 0.42 m
Curved surface area = 2πrh
= 2 × 22/7 × 42/100 × 2
= 5.28 sq. m
Revolutions made = 7920/5.28 = 1500
Hope this helps!!!
Plsss make it the brainliest!!!
ggmonsterhallows:
Sorry
Diameter is 42
Radius is 42 sorry
Length 200
U r reported b I t c h
after 300 revolution area will remain same as one
U r d umber than the other one
#d u m b a s s
Answered by
1
Answer:
1584 m²
Step-by-step explanation:
Length = 2 m.
Diameter = 84 cm = 0.84 m
Radius = 0.84/2
= 0.42 m
Area covered by the roller in one revolution = 2πrh
= 2 * (22/7) * 0.42 * 2
= 5.28 m²
Area covered by the roller in 300 revolutions = 300 * 5.28
= 1584 m²
Therefore, Area covered in 300 revolutions = 1584 m²
Hope it helps you
#Bebrainly
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