Question

R=3, H =7 find the curved surface area of cylinder, total surface area of cylinder, volume of a cylinder. ​

Answer 1

Answer:

R=3, H =7

CSA =2πrh= 2x22/7x3x7=132U²

TSA= 2πrh+2πr²=132+2X22/7X3

=132+18.86=150.86U²

VOLUME=2πr²h=2X22/7X3²X7=396U³

Answer 2

$\huge \color{maroon}Answer :$

We have,

r=3 cm,h=7 cm

We know that the volume of the cylinder

V=πr² h

V= 22/7 ×3² ×7

V=22×9

V=198 cm³

We know that the curved surface area of the cylinder

Ac =2πrh

Ac =2× 22/7 ×3×7

Ac =22×6

Ac =132 cm²

We know that the total surface area of the cylinder

AT =2πr² +2πrh

AT =2× 22/7 ×3² +2× 22/7 ×3×7

AT =56.57+132

AT =188.57 cm²

Hence, this is the answer.