a mettliv pipe 0.7 cm thick inner radius of pipe is 3.5cm and length is 5dm find its total surface area
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Total surface area =2πr( r+h)
2×22/7×3.5(3.5+50)
Now slove this.
2×22/7×3.5(3.5+50)
Now slove this.
alok2783:
this is wrong
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0
Answer:
Step-by-step explanation:
We know,
Total surface area of pipe = 2π (r+ R ) ( h+ R - r)
or, Total surface area of pipe= 2×22/7(3.5+4.2)(50+4.2-3.5)
= 44/7 × 7.7 × 50.7
=2453.88cm^2
So the answer should be 2453.88cm^2
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