Question

2) Find total surface area of a cylinder of radius 7m and height 3m is made from a sheet of
metal.
106)​

Answer 1

Answer:

Explanation:

Answer

Total surface area of the cylinder =2π×r(h+r)

=2×  

7

22

​  

×7×(7+3)=44×10=440m  

2

 

Sheet of metal required =440m  

2

Answer 2

Answer:

total surface area of a cylinder= 2πr(r+h)

= 2×22/7 ×7(7 + 3)

= 440 m²