| 1 |
| / 3 |
S1* S2))
| 1 |
| / 3 |
S1* S2))$$V$$ = $$\frac{1}{3}\cdot h\cdot (S1+S2+\sqrt {S1\cdot S2})$$





| S1* h |
| / 3 |
| S2* h |
| / 3 |
saknis( S1* S2)* h |
| / 3 |






| 120* 8 |
| / 3 |
| 80* 8 |
| / 3 |
saknis( 120* 80)* 8 |
| / 3 |






| 80* 8 |
| / 3 |
saknis( 120* 80)* 8 |
| / 3 |






| 80* 8 |
| / 3 |
saknis( 120* 80)* 8 |
| / 3 |






| 640 |
| / 3 |
saknis( 120* 80)* 8 |
| / 3 |






| 640 |
| / 3 |
saknis( 9600)* 8 |
| / 3 |






| 640 |
| / 3 |
( 40* saknis( 6))* 8 |
| / 3 |






| 640 |
| / 3 |
40* saknis( 6)* 8 |
| / 3 |






| 640 |
| / 3 |
320* saknis( 6) |
| / 3 |






| 1600 |
| / 3 |
320* saknis( 6) |
| / 3 |






320* saknis( 6) |
| / 3 |






| 320* 2.44949 |
| / 3 |






| 783.8368 |
| / 3 |
















