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A tent is in the form of a cylinder of diameter 20m and height 2.5 m surmounted by a cone of equal base and height 7.5 m find the cost of the convas at rupees 100 per square metre,

Posted by Tera Baap 6 years, 10 months ago

CBSE > Class 10 > Mathematics

2 answers

Anshu Rai ? 6 years, 10 months ago

CSA of cylinder =2πrh =2*22/7*10*2.5 =25*22/7 =1100/7 l=√h²+r² =√(7.5)²+10² =√56.25+100 =12.5 CSA of cone =πrl =22/7*10*12.5 =22/7*125 =2750/7 Total area of canvas=1100/7+2750/7 =3850/7 =550 Cost of canvas =100*550 =₹ 55000

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Tera Baap 6 years, 10 months ago

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