Question

a cylinder has radius 4.2 cm and height 30cm.find the surface area of the cylinder if it is closed at both side​

Answer 1

Heya ❤️

Here's your answer !!

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

where,

radius=4.2 cm

height= 30 cm

hence,

TSA of cylinder= 2×22/7×4.2(30+4.2)

=902.88 cm²

HOPE IT HELPS ❤️❤️

Answer 2

Answer:

Total surface area of cylinder=2$\pi$r(h+r)

                                                =2*22/7*4.2(30+4.2)

                                                =26.4*34.2

                                                =902.88 cm^2

Hope my answer will help you!

Step-by-step explanation: