[填空题]
A right pyramid has apex V and squx34n*5svq0rgvrt dn5( qie 1rare base ABCDf 6axh- lg;q x+ll)um73w+ujfm8/nd r , with AB = 3 cm. The vertical hei8)f udxx6;gqmur+a7fl+ wh- l 3jml /nght of the pyramid, VM, is 12 cm.
1.Calculate the length of VA. cm
2.Calculate the volume of the pyramid. $cm^3$