Question

8. The circumference of the base of a right circular
cylinder is 88 cm. If the height is 42 cm, find the
volume of the cylinder.​

Answer 1

Step-by-step explanation:

Suppose the base radius of the cylinder= r cm

∴ Circumference of the base of the cylinder =2πrcm

According to question:

2πr=88∴r=

2π

88

=

2×22

88×7

=14cm

∴ Volume of the cylinder=πr

2

h

=

7

22

×(14)

2

×42

=22×2×14×42=25872cucm

Answer 2

Required Answer:-

Given:

• The circumference of the base of a right circular cylinder is 88 cm.
• Height of the cylinder is 42 cm.

To Find:

• The volume of the cylinder.

Solution:

Let the radius of the base be r. Therefore,

➡ 2πr = 88

➡ 2 × 22/7 × r = 88

➡ 44r/7 = 88

➡ r = 88 × 7/44

➡ r = 14 cm.

★ Hence, the radius of the base is 14 cm.

So, the volume of the cylinder will be,

= πr² × h

= 22/7 × 14 × 14 × 42

= 25872 cm³

Answer:

• The volume of the cylinder is 25872 cm³.