1.

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

Answer»

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



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