Question

Triangle ABC has vertices at A(2 , 2), B(4, 7), and C(6, 2). Classify the triangle according to the side lengths

Answer 1

There's an equation to find the length between 2 points on a plane.

√[(2-4)2 + (2-7)2] = √29

√[(4-6)2 + (7-2)2] = √29

√[(2-6)2 + (2-2)2] = 4

Therefore, Triangle ABC is an iscoceles triangle!