Question

find total surface area of cylinder with radius 21 cm and height 5 cm​

Answer 1

Answer:

Total suface area of cylinder

$2\pi r(h + r)sq.unit$

Since, radius = 21 cm

and. height = 5 cm

Therefore,

2π 21 ( 5 + 21 ) [according to formula]

2 * 3.14 (26). [ π = 3.14 ]

6.28 * 26

163.28

Hence, total suface area of cylinder is 163.28cm^2

Step-by-step explanation:

* = multiply