Question

Dum hai to answe do
It is required to make from sheet a closed cylindrical tank whose height is 1 m and radius of whose base is 70 cm. How many square meter metal sheet is required ?

Answer 1

TSA of a cylinder is 2pi R H
2*3.14*70/100*1
4.396 Sq meter

Answer 2

3.14(0.7)^2×1 +2×3.14×(.7)^2 will be the answer