Question

the radius of cylinder first is 10.5 cm and its height is 21 CM the radius and its height of cylinder second are 21 cm and 10.5 CM respectively compare first value of these two cylinder second surface area office two cylinders​

Answer 1

Answer:

Surface  area of 2nd cylinder is greater

Step-by-step explanation:

Surface area of cylinder = 2πr (h + r)

1st cylinder

2*22/7*10.5*(21 + 10.5)

2079 cm²

2nd cylinder

2*22/7*21(10.5 + 21)

4158 cm²

Surface  area of 2nd cylinder is greater