Question

Find height of a cylinder whose radius is 7cm and t.s.a is 968cm

Answer 1

Surface area=2pie×r(h+r)

968=2×22/7×7(h+7)

968=44(h+7)

968=44h+308

968-308=44h

66=44h

66/44=h

H=3/2

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Answer 2

Answer:

• Height = 15 cm

Given :

• Total surface area (T. S. A) of cylinder = 968 cm²

• And, Radius of cylinder = 7 cm

To find :

• Height of cylinder =?

Step-by-step explanation:

Total surface area of cylinder = 2πr(r+h)

968 = 2πr(r+h)

968 = 2 × 22/7 × 7 (7+ h)

968 = 44 (7 + h)

(44 × 7) + (44 × h) = 968

308 + 44h = 968

44h = 968 - 308

44h = 660

h = 660/44

h = 15

Hence, the height of cylinder = 15 cm.