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Line 405:
Line 405: − + − + − Line 418:
Line 417: − + − + − + − − − To calculate weight of the solid cone we have to use density of the given material. − − density=10gm/ − =Kg/+ + + + + − =2618XKg/+ − =26.18Kg+
→solved problems on cone Example 10
knowledge to be used
knowledge to be used
#radius=
#radius=diameter/2
#density=mass/volume
#density=
# knowledge of measurements
# knowledge of measurements
#Formula of volume of cones
#Formula of volume of cones
#units conversion
#units conversion
solution:
solution:<br>
d=14cm r===7cm, h=51cm<br>
d=14cm r=7cm, h=51cm<br>
Volume of cone=
Volume of cone=
<math>\frac{1}{3}{Л}{r^2}h
=<math>\frac{1}{3}{Л}{r^2}h</math><br>
<math>\frac{1}{3}{\frac{22}{7}}{7^2}51
=<math>\frac{1}{3}{X}{\frac{22}{7}}{X}{7^2}{X}51</math><br>
=<math>2618{cm^3}</math><br>
To calculate weight of the solid cone we have to use density of the given material.<br>
density=<math>10gm/{cm^3}</math><br>
=<math>{\frac{10Kg}{1000cm^3}}</math><br>
Weight of solid cone=volumeXdensity
Weight of solid cone=volumeXdensity
=<math>2618{cm^3}{X}{\frac{10Kg}{1000cm^3}}</math><br>
=26.18Kg
= Project Ideas =
= Project Ideas =