Practice!

Sample Problem

Triangle X has vertices located at:

Vertex A: (4,6)

Vertex B: (7,3)

Vertex C: (2,1)

Triangle X is a(n)

Scalene triangle

Isosceles triangle

Equilateral Triangle

Solution

Using distance formular: Given th two points (x1y1) and (x2y2), the  distance between these points given  , to find the diffferent distance between two points: 

Distance AB: 3

Distance BC:

Distance AC:

Because BC = AC, this triangle is isosceles.