# Math! Help Hurry!

posted by JT

Two vertices of a right triangle have the coordinates (−2, 5) and (9, 5) .

What is the length of the side formed by these vertices?

1. Scott

same y-coordinates

a vertical line

length is the difference of the x-coordinates

2. damiensandowz

Let A (-2,5) be (x1,y1) and B(9,5) be (x2,y2).

Using distance formula,

distance^2(d^2)=(x2-x1)^2+(y2-y1)^2
= [9-(-2)]^2 + [5-5]^2
= 11^2 + 0^2
= 11^2
= 121

Now, converting the above information to its square root to obtain the actual length.

distance (d)= /121
= 11 units.

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