Question

A pipe has a length of4.9 m and a radius of 1.4 m .what is the surface area of the pipe?​

Answer 1

Answer:

6.86 $m^{2}$

Step-by-step explanation:

Step 1 : length of pipe will be consider as a height of pipe.

So h = 4.9m.

Step 2 : radius = 1.4m

2πr = 1.4 m

Step 3 : formula for finding surface area is 2πrh

Step 4 : putting all value in this formula we get

S.A. = 2πr x h

Step 5 : we have value of 2πr = 1.4 and h = 4.9

S.A. = 1.4 x 4.9

S.A. = 6.86 $m^{2}$