Question

find the height of a cylinder whose radius is 7 millimetre and total surface area is 968millimetre​

Answer 1

Answer:

height = 15 millimeters

Step-by-step explanation:

TSA of cylinder =2×22/7×r(h+r)

968=2×22/7×7(h+7)

968=2×22(h+7)

968/2×22=h+7

22=h+7

h=22-7

h=15

Therefore height is 15 millimeters

Answer 2

Answer:

T.S.A of cylinder = 2πr(r+h)

T.S.A of cylinder = 2πr(r+h) r = 7mm

2×3.14×7(7+h) = 968mm

6.28×7(7+h) = 968

43.96(7+h) = 968

307.72+43.96h = 968

43.96h = 968-307.72

43.96h = 660.28

h = 660.28÷43.96

h = 15.02mm

So the height of cylinder is 15.02mm