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Find the mass of the cylinder …

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Find the mass of the cylinder having radius 60 cm and height 10.5 cm.Material inside the cylinder weigh 5g per square cm.

Posted by Jd Shukla 8 years, 10 months ago

CBSE > Class 09 > Mathematics

2 answers

Jd Shukla 8 years, 10 months ago

No, the question is only that what' s it written and its answer is about 102 g

0Thank You

Naveen Sharma 8 years, 10 months ago

Ans. In the sentence above 5 g per cm² is supposed to be the density of the material. The units of density are g/cm³. So the density is 5 g/cm³.

Mass = Density × Volume

Radius of cylinder = 10.5 cm

Height of cylinder = 60 cm

Volume of cylinder = \(\pi r^2 h = {22\over 7} \times10.5 \times 10.5\times 60\)

= 20790cm³

So Mass of Material = 5 × 20790 = 103950g = 103.95Kg

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