Please geniuses solve it i beg
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11
As per the question,
Diameter of cylinder = 1.4 m and
length(h) = 8 m.
=> the radius of sphere(r) = radius of cylinder
=> surface area of tank = surface area of cylinder + 2[surface
Area of hemisphere]
= 2πrh + 2(2πr²)
= 2πr(h + 2r)
= 41.36 m2
Your answer.
Diameter of cylinder = 1.4 m and
length(h) = 8 m.
=> the radius of sphere(r) = radius of cylinder
=> surface area of tank = surface area of cylinder + 2[surface
Area of hemisphere]
= 2πrh + 2(2πr²)
= 2πr(h + 2r)
= 41.36 m2
Your answer.
Answered by
1
Answer:
Step-by-step explanation:
Total surface area of cylinder = 2 pi r( r+h)
According to the question,
Total surface area of given cylinder
⇒ 2 X 22 / 7 X 0.7 ( 0.7 + 8 ) = 4.4 X 8.7 = 38.28sq.m
Cost of painting cylinder at rate of 20/sq.m= 38.28 X 20 = Rs. 765.6
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