Answered

Get personalized answers to your unique questions on IDNLearn.com. Find in-depth and trustworthy answers to all your questions from our experienced community members.

The volume of a right circular cylinder is 1100 cm3 and the radius of its base is 5 cm. Calculate its curved surface area.

(A) 410 cm2 (B) 125 cm2 (C) 440 cm2

Sagot :

Mhanifaidn

Answer:

  • (C) 440 cm²

Step-by-step explanation:

Volume:

  • V = πr²h

Given r = 5 cm and V = 110 cm³, find h:

  • 1100 = π(5²)h
  • 1100/25 = πh
  • 44 = πh

Curved surface area:

  • S = 2πrh = 2*5*πh = 10*44 = 440 cm²

Correct choice is C

Answer:

(A) 440 cm²

Step-by-step explanation:

Volume of a right circular cylinder  =  1100 cm²

πr2 h =  1100 cm³

Here r = 5

(22/7) ⋅ (5)2 ⋅ h  =  1100

h  = 2/7

Curved surface area of cylinder  =  2 πr h

 =  2 ⋅ (22/7) ⋅ 5 ⋅ (2/7)

=  440 cm²

So, the curved surface area of cylinder is  440 cm²

We appreciate every question and answer you provide. Keep engaging and finding the best solutions. This community is the perfect place to learn and grow together. Find reliable answers at IDNLearn.com. Thanks for stopping by, and come back for more trustworthy solutions.