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| PAGE: 8 | SET: Exercises | PROBLEM: 55 |
The points are 
, 
and 
.
Calculate lengths of each side of the triangle by using the distance formula,
.
Calculate length of the 
.
and 
.
Substitute 
for 
, 
for 
, 
for 
and 
for 
in above formula.
Calculate length of the 
.
and .
Substitute for , for , 
for and for in above formula.
Calculate length of the 
.
and .
Substitute for , for , for and for in above formula.
Lengths of three sides of the triangle are different, so the triangle is not isosceles triangle.
Graph:
Draw the coordinate plane.
Plot the points and connect the plotted points.
Verify the Pythagorean theorem.
is a right angle triangle.
is a right angle triangle.
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