The diagonals of a parallelogram are `2hati` and `2hatj`. What is the area of the parallelogram

Explanation

`Let A=2hati and B=2hatj`
`Area =(1)/(2) |AxxB| =(1)/(2)[2hatixx2hatj]`
`=(1)/(2)[4(hatixxhatj)]=(1)/(2)|4hatk| (therefore hatixxhatj=hatk)`
` =2sq units.`