Question

If the TSA of a solid right circular cylinder is thrice it's CSA then find the radius and height

Answer 1

Answer:

r = 2 ; h = 1

Step-by-step explanation:

TSA = 2 * pi * r (h + r)

CSA = 2 * pi * r * h

TSA = 3 CSA

2 * pi * r (h + r) = 3 * 2 * pi * r * h

h + r = 3h

r = 2h

r/h = 2/1

Therefore, r = 2 and h = 1. Even if we take other values, the ratio will always be 2:1.