First you need the formula for SA of a cylinder: SA = 2(πr^2) + 2πr*h (area of the top and bottom circles plus the side) Then plug your values into the equation and rearrange to make h the subject: 1470.3 = 2π13^2 + 2π*13*h 26πh = 1470.3 - 338π h = (1470.3 - 338π)/26π =5.00042... so h is approximately 5 units :)
