Question

Volume of right circular cylinder is 550cm cube and area of whose curved surface is 220cm square what are the radius and height ?

Answer 1

Radius of cylinder will be 5 m and height will be 7 m

Step-by-step explanation:

We have given volume of right circular cylinder $V=550cm^3$

So $\pi r^2h=550cm^3$-----eqn 1

Curved surface area is given $A=220cm^2$

So $2\pi rh=220cm^2$------eqn 2

Now dividing equation 1 by 2

$\frac{\pi r^2h}{2\pi rh}=\frac{550}{220}$

$\frac{r}{2}=2.5$

r = 5 cm

Now putting the value of r in equation 2

$2\times 3.14\times 5\times h=220$

h = 7 m

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