Question

The curved surface area of a cylinder is 220 (cm)^2Its base radius is 3.5 cm, then its height is

Answer 1

Answer:

Height=10 cm

Step-by-step explanation:

Curved surface area of a Cylinder=220

2.pie.r.h=220

2×22/7×3.5×h=220

Height=10 cm

so height will be 10 cm

Answer 2

Given:

Surface area=220 cm sq

Radius=3.5cm

To find:

The cylinder's height

Solution:

The required height is 10 cm.

We can obtain the height by substituting the given values in the surface area's formula.

Let the required height be h.

The cylinder's radius, r=3.5 cm

The cylinder's surface area=2πrh

Using the values,

220=2×22/7×3.5×h

10=2/7×35/10×h

10=5/5×h

10=h

So, the height is 10cm.

Therefore, the required height is 10 cm.