Math, asked by rubyjha8288, 1 year ago

please answer my question its urgent...

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Answered by mohitparmar

r^2=28^2-21^2
r^2=343
volume of cone =3.14×343×21=22617.42

rubyjha8288: ohk

gungun38: ans is 407.44 cm ³ approx.......

rubyjha8288: 7546 is right ans but i cannot abel to find

gungun38: first of all we have given h and slant height i.e, L so we have to find r so, l=√h²+r² = l² =√ h²+r² = 28² = 21²+ r² = 784-441= r² so r² = 343 so r = √ 343 i.e, 18.52 cm approx now find the volume by putting the values you ll get 407.44 approx

rubyjha8288: thanks....

gungun38: ur wlcm

rubyjha8288: :-)

gungun38: means...

Answered by gungun38

ans is 407.44 cm ³
Hope this helps.............

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