Question

the base area of a cylinder is 25 square centimetre and its volume is 400 cute cm what is its height

Answer 1

Hi friend,

Base area of cylinder = πr²

25 = 22/7 ×r²

r² = 25×7/22 = 7.9

r² = 7.9

r = ✓7.9 = 2.8 cm

Volume of cylinder = πr²h

400 = 22/7 × 2.8 × 2.8 × h

H = 400 × 7 / 22 × 2.8 × 2.8

H = 2800/172.48

H = 16.2 CM

Hence,

Height of the cylinder = 16.2 cm

HOPE IT WILL HELP YOU..... :-)

Answer 2

Hi...☺

Here is your answer...✌

GIVEN THAT,

Base Area of Cylinder = 25 cm²

πr² = 25 cm² ____(1)

And

Volume of Cylinder = 400 cm³

πr²h = 400 cm³ ____(2)

Dividing eq(2) by eq(1)

We get,

(πr²h) / (πr²) = 400 cm³/25 cm²

h = 16 cm

HENCE,

Height of Given Cylinder is 16 cm