total surface area of a cylinder with height 5cm is 88 cm2 find its radius.
Answers
Answered by
2
Hey mate Here is your answer
Plz. try to understand and mark it as Brainliest
Plz. try to understand and mark it as Brainliest
Attachments:
Answered by
0
Answer:
surface area of cylinder with radius r and height h = 2π.(r² + rh)
given
h = 5cm
Area = 88cm²
Hence,
88 = 2π(r² + 5r)
88 = 2 × 22/7 . (r² + 5r)
14 = (r² + 5r)
r² + 5r -14 = 0
(r-2)(r+7) = 0
r = 2 since r cannot be -7
radius = 2cm
Similar questions