Plan: Place the right triangle in the coordinate plane with the vertex of the (a) __________ at the origin and the (b) __________ along each axis. Since midpoints will be involved, use (c) __________ to name the coordinates for points M and N. Use the (d) __________ formula to find the coordinates of P. To compare lengths, use the (e) __________ formula.


Select the best phrase to enter in place of blank (b) in the above plan.

a.

multiples of 2

b.

midpoint

c.

legs

d.

right angle