Question

curved surface area of a right circular cylinder is 4.4m2.If the radius of the base of the cylinder is 0.7m, find its height.​

Answer 1

$\bold{\underline{\underline{\huge{\sf{ANSWER\::}}}}}$

Given:

Curved surface area of a right circular cylinder is 4.4m². If the radius of the base of the cylinder is 0.7m.

To find:

The height of the cylinder.

Explanation:

We have,

• Curved surface area of cylinder= 4.4m²
• Radius of the base of cylinder= 0.7m

We know that formula of the Curved surface area: 2πrh      [sq.units]

Let the height of the cylinder be h m

Therefore,

→ 2πrh = 4.4m²

→ 2× $\frac{22}{7} *0.7*h$= 4.4m²

→ $\frac{44}{\cancel{7} }*\cancel{0.7}*h$= 4.4m²

→ (44× 0.1)m × h= 4.4m²

→ 4.4m ×h= 4.4m²

→ h= $\cancel{\frac{4.4m^{2} }{4.4m} }$

→ h= 1m

Thus,

The height of the cylinder is 1m.

Answer 2

Answer:

1cm

Explanation:

The height of the cylinder is 1 cm.