A cylinder of radius 7 cm has a curved surface area of 2200 cm2. . Find its total surface area. (use pi = 22/7 )
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 2508 cm2.
Given that
C.S.A = 2200 cm2 and radius = 7 cm
Formula used
C.S.A of cylinder = 2πrh
T.S.A of cylinder = 2πr(r + h)
Hence, 2πrh = 2200
Solving for h we get
h = 50 cm
Substituting these values in the formula for T.S.A we get
T.S.A = 2πr(r + h) = 2 × 22 × 57 = 2508 cm2