Question

calculate the height of 385cm² of water inside a cylinder of diameter 7cm. (π=)

Answer 1

Answer:

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$vol = 385 \\ \pi {r}^{2} h = 385 \\ \frac{22}{7} \times 49 \times h = 385 \\ h = \frac{385 \times 7}{49 \times 22} \\ h = \frac{385}{22 \times 7} \\ h = 2.5cm$

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Answer 2

Answer:

vol=385

πr

2

h=385

7

22

×49×h=385

h=

49×22

385×7

h=

22×7

385

h=2.5cm