Q.10 Find the curved surface area10cm and height is 49.cm.and total su

1.	Q.10 Find the curved surface area10cm and height is 49.cm.and total surface area of cylinder whose radius is
Answer» Given:Height,h=15cmRadius,r=7cm(i)Curvedsurfacearea,S1=2πrh=2×227×7×15=660cm2(ii)Totalsurfacearea,S2=2πr(r+h)=2×227×7×(7+15)=44×22=968cm2(iii)Volumeoftherightcircularcylinder,V=πr2h=227×72×15=2310cm3 (I) answer is 3080 cm^2 and (ii) answer is 3708.571428

Q.10 Find the curved surface area10cm and height is 49.cm.and total surface area of cylinder whose radius is

Answer»

Given:Height,h=15cmRadius,r=7cm(i)Curvedsurfacearea,S1=2πrh=2×227×7×15=660cm2(ii)Totalsurfacearea,S2=2πr(r+h)=2×227×7×(7+15)=44×22=968cm2(iii)Volumeoftherightcircularcylinder,V=πr2h=227×72×15=2310cm3

(I) answer is 3080 cm^2 and (ii) answer is 3708.571428

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Q.10 Find the curved surface area10cm and height is 49.cm.and total surface area of cylinder whose radius is

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