Question

.radius is 1.4cm and height is 2.1 find the curved surface area of cylinder and total surface area of cylinder ​

Answer 1

Hope it helps u................

Answer 2

Answer:

radius=1.4

height=2.1

curved surface area of cylinder

=2πrh

=2×22/7×0.2×2.1

=44×0.2×2.1=8.8×2.1=18.48sq.cm

Total surface area of cylinder

=2πr(r+h)

=2×22/7×1.4(1.4+2.1)

=2×22/7×1.4×3.5

=22×0.4×3.5=8.8×3.5=30.80sq.cm

ans=Curved surface area of cylinder is18.48sq.cm and Total surface area of cylinder is 30.80 sq.cm