Question

find the lateral surface area and total surface area of a cylinder with height 28cm and radius 7cm​

Answer 1

Answer:

$\huge\red{\underline{\mathbb{Explanation:-}}}$

Given, radius of a cylinder (r) = 7cm

Height of the cylinder (h) = 28 cm

Lateral surface area of the cylinder = 2πrh sq.unit

= 2 × ${22/7}$ × 7 × 22

= 44 × 28 sq.unit

= 1232 sq.unit

Now,

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

= 2 × ${22/7}$ × 7 (28+7)

= 44 × 35 sq.unit

= 1540 cm^2

l hope it's help you ♥️

Answer 2

Step-by-step explanation:

Given: Radius=7cm,

Height=10cm

Total surface area=2πr(h+r)sq.units

=2×

7

22

×7(10+7)

=44×17=748sq.cm