Question

the volume of height of cylinder is 8 cm volume is 1232 cm cube. Find its csa.

Answer 1

let r=radius of cylinder
let A =Area of one end=πr^2
h=height=8
v=volume of cylinder=1232 
A*h=volume
πr^2*8=1232
πr^2=1232/8=154 cm^2(area of one end)
r=√(154/π)≈7
Curved surface area=circumference*height=2πr*8=351.86 cm
Total surface area=2*154+351.86=659.86 cm^2 

Answer 2

$\underline\mathfrak{Given:-}$

• The volume of height of cylinder is 8cm.
• volume is 1232cm³.

$\underline\mathfrak{To \: \: Find:-}$

• Find the four term of the Ap ......?

$\underline\mathfrak{Solutions:-}$

• Volume of cylinder = 1232cm³
• Height of cylinder = 8cm

Volume of cylinder = πr²h

πr²h = 1232

22/7 × r² × 8 = 1232

r² = 1232 × 7 / 22 × 8

r² = 112 × 7 / 2 × 8

r² = 56 × 7 / 8

r² = 7 × 7

r² = 49

r = 7 cm

radius = 7cm

CSA of cylinder = 2πrh

2 × 22/7 × 7 × 8

44 × 8

352cm²

hence, the CSA of cylinder is 352cm²