Let the given points be,
⇒A(3,2),B(−2,−3) and C(2,3)
Therefore,
AB=√(3+2)2+(2+3)2=√50=5√2 units
BC=√(−2−2)2+(−3−3)2=√52=2√13 units
AC=√(3−2)2+(2−3)2=√2 units
Now, we can see that,
(2√13)2=(5√2)2+(√2)2
BC2=AB2+AC2
Therefore, the given triangle is a right angled triangle.