Question

if the curved surface area and the height of the cylinder are 220cm square and 5 cm then its radius will be

Answer 1

Answer:

• Radius of the cylinder = 7 cm

Step-by-step explanation:

GIVEN

• Curved surface area of a cylinder = 220 cm
• Height of cylinder = 5 cm

TO FIND

• Radius of the cylinder.

FORMULA USED

• Curved surface area of cylinder = 2πrh sq. unit

Where,

• Radius is denoted as r.
• Height is denoted as h.

USING FORMULA TO FIND RADIUS

Curved surface area of cylinder = 2πrh sq. unit

→ 220 = (2 × 22 × r × 5)/7

→ 220 × 7 = 220r

→ r = (220 × 7)/220

→ r = 7

∴ Radius of the cylinder = 7 cm

Answer 2

Answer:

Given-

C.S.A of cylinder = 220 cm²

height of the cylinder = 5 cm

π = 22/7

Step-by-step explanation:

solution-

formula of C.A.S of cylinder = 2πrh

220 = 2×22/7×r×5

220×7/22×2×5 = r

7 = r

radius of cylinder = 7

hope it will help you