Volume of cylindrical bottle is 88 cm3, radius is 2 cm, then h = …

1.	Volume of cylindrical bottle is 88 cm3, radius is 2 cm, then h = ……… cm.A) 12 B) 10 C) 9 D) 7
Answer» Correct option is: D) 7 Given that radius of cylindrical bottle is r = 2 cm. Volume of the cylindrical bottle is V = 88 \(cm^3\). \(\therefore\) \(\pi r^2h\) = 88 \(\Rightarrow\) h = \(\frac {88}{\pi r^2} = \frac {88\times 7}{22 \times 2 \times 2} = 7 \, cm\) Hence, height of cylindrical bottle is h = 7 cm. Correct option is: D) 7

Volume of cylindrical bottle is 88 cm3, radius is 2 cm, then h = ……… cm.A) 12 B) 10 C) 9 D) 7

Answer»

Correct option is: D) 7

Given that radius of cylindrical bottle is r = 2 cm.

Volume of the cylindrical bottle is V = 88 \(cm^3\).

\(\therefore\) \(\pi r^2h\) = 88

\(\Rightarrow\) h = \(\frac {88}{\pi r^2} = \frac {88\times 7}{22 \times 2 \times 2} = 7 \, cm\)

Hence, height of cylindrical bottle is h = 7 cm.

Correct option is: D) 7