Question

Can u please help me with this question with a formula step by step

Answer 1

Answer:

90cm

Step-by-step explanation:

Volume of a cylinder = πr²h

Given, r = 42/2 = 21 and volume = 124740cm²

v =  πr²h

124740 = 22/7 × 21 × 21 ×h

124740 = 1386 × h

124740/1386 = h

h = 90

Answer 2

Answer:

Volume of cylinder= πr²h

r= 42/2

= 21 cm

⇒ πr²h= 124740 cm³

22/7×21×21h= 124740

22×3×21×h= 124740

h= 124740/22×3×21

h= 5670/3×21

h= 1890/21

h= 90 cm

Hope it helps

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