Question

State true or false:

The height of a circular cylinder is 20 cm and the radius of its base is 7 cm, then

the total surface area is 1188 $c{m}^2$

If true enter 1 else 0

Answer 1

Total Surface Area of a Cylinder of Radius $R$ and height $h$ $=2\pi R(R+h)$
Hence, Total Surface Area of the given cylinder $=2\times \frac{22}{7}\times 7(7+20)$

$=2\times \frac{22}{7}\times 7\times 27$

$=1188sqcm$

Answer-1-true