Question

the diameter of the base of right circular cylinder is 4.2 and its height is 1 find the area of curved surface in cm​

Answer 1

Answer:

Cylinder

r = 2.1 cm

height=1

CSA= 2πrh=2x22/7 x 2.1x1

= 13.2cm2

Answer 2

Step-by-step explanation:

Radius = d/2

= 4.2/2

= 2.1 cm

CSA = 2πrh

= 2 × 22/7 × 21/10 × 1

= 2 × 22 × 3/10

= 132/10

= 13.2 cm^2

Hope it helps you