Classify Triangles

Scalene triangle

All three sides are of different lengths

All three angles are of different measures

Isosceles triangle

Two sides are of same length

Two angles are of same measure

Equilateral triangle

All three sides are of same length

All three angles are of same measure

Acute triangle

All three angles are less than 90°

Right triangle

One angle is exactly 90°

Obtuse triangle

One angle is more than 90°