P(-2,-6), Q(6,9) and R(1, -3) are the vertices of a triangle. Find the number of units by which the length of PQ exceeds the length of QR.

Please I need your help. ^ Thanks. (Rofl)

time: 4h.

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- February 13th 2011, 03:48 AMEftychiacoordinate geometry
P(-2,-6), Q(6,9) and R(1, -3) are the vertices of a triangle. Find the number of units by which the length of PQ exceeds the length of QR.

Please I need your help. ^ Thanks. (Rofl)

time: 4h. - February 13th 2011, 04:23 AMProve It
So use Pythagoras to find the length PQ, the length QR, and see how much longer it is...

- February 13th 2011, 07:12 AMEftychia
it was more simple than I thought xD thanks(Rofl)