Can anyone send me a chess game link which i could play with my online friend (particular friend)

I believe if you type in (online lan chess game) you and your friend will be able to play together if you are on the same lan (wifi connection)

Hypothesis: volumes of both figures are equal.the volume of  figure 1 is: .the volume of figure 2 is: .since , you can conclude that and . so, .volumes of figures are equal only when an angle in the basis is right (then figures will be the same), in another cases volume of figure 1 is less than volume of figure 2.the hypothesis was not correct in all cases.