Write the total surface area of a right circular solid cone having radius 10cm and slant height 25cm (Take π=227)
1100cm2
2100cm2
1150cm2
1200cm2
A
1150cm2
B
1200cm2
C
1100cm2
D
2100cm2
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Solution
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Total surface area of cone=πrl+πr2πr(l+r)=227×10×(25+10)=227×10×35 TSA=1100cm2
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