Question

Find the ratio of C.S.A. and T.S.A. of cylinder of radius 2 cm and height 2 cm.​

Answer 1

Step-by-step explanation:

HOPE IT HELPS PLS MARK AS BRAINLIST

Answer 2

Answer: 0.5

Step-by-step explanation:

Given:

• Height of the cylinder is h = 2 cm.

• Radius of the cylinder is r = 2 cm.

Calculate the curved surface area.

$\begin{aligned}CSA&=2\pi r h\\&=2\pi\times2\times2\\&=8\pi\\&\approx25.13\,\rm{cm}\end{aligned}$

Calculate the total surface area.

$\begin{aligned}TSA&=2\pi r(r+h)\\&=2\pi\times2(2+2)\\&=4\pi(4)\\&=16\pi\\&\approx50.27\,\rm{cm}\end{aligned}$

Calculate the ratio of CSA and TSA.

$\begin{aligned}\frac{CSA}{TSA}&=\frac{8\pi}{16\pi}\\&=0.5\end{aligned}$