Question

inevstigate wheter the triangle with vertices A(1, 3), B(2, 5) and C(3, 2) is an isoscels triangle

Answer 1

Answer:

First let's calculate the distance.

AB=√(2-1)²+(5-3) ²= √1+4=√5

BC=√(3-2) ²+(2-5) ²=√1+9=√10

AC=√(3-1) ²+(2-3) ²=√4+1√5

So, yes it's an isosceles triangle as 2 sides are equal.