the barrel of a fountain pen ,cylindrical in shape is 7cm long and 5 mm in diameter a full barrel of the fountain will be used up on writing 330 words of the average then find the volume of the barrel fountain pen
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Answer:
volume of the cylinder =1.375cm³
Step-by-step explanation:
the shape of fountain pen barrel is cylinderical
therefore ,
Given :- height = 7cm
diameter = 5mm= 5/10=0.5 cm
radius = 0.5 * ½ = 0.25 cm
to find volume of the cylindrical barral = ?
solution =
volume of a barrel= volume of a cylinder = πr²h
= 22/7 * (0.25)² * 7
= 22 * 0.0625
= 1.375 cm³
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