Question

2. Find the total surface area of a solid cylinder of radius 5 cm and height 10 cm. Leave
your answer in terms of
$\pi$
​

Answer 1

Step-by-step explanation:

r=5cm

h=10

volume of solid cylinder= πr²h

= π5²×10

= 250πcm²

Answer

Answer 2

Given

Radius of Cyclinder is 5cm

height of cylinder is 10cm

To Find

Total surface area of cylinder

$\sf\huge\bold{\underline{\underline{{Solution}}}}$

★Total surface area of cylinder=2πr(r+h) ★

Radius =5cm

height =10cm

Now,put values into formula

Total surface area of cylinder=2π×5(5+10)

$\: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \:$=>10π(15)

$\: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \:$=150πcm²

∴Total surface area of cylinder is 150πcm²

Extra information=>

Curved surface area of cylinder=2πrh

volume of cylinder=πr²h

➤Curved surface area (csa ) is the area occupy by a 3D object excluding its top and bottom surface.

➤Total surface area (tsa) is the total area occupied by a 3D object including its top + bottom surface.

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