Total surface area of cylinder of height 5.5cm is 198sqcm.Find it's radius
Answers
Answered by
3
Answer:
Step-by-step explanation:
TSA = 2pi r ( r + h)
=> 198 = 2 * 22/7 r ( r + 5.5)
=> 198 * 7/44 = r ( r + 5.5)
=> 31.5 = r^2 + 5.5r
=> 0 = r^2 + 5.5r - 31.5
=> r = 3.5, -9
=> r = 3.5
Answered by
0
Hope it helps you to get answer
Similar questions