classifying triangles students will classify triangles using the lengths of the sides and the...

Classifying Triangles

Students will classify triangles using the lengths of the sides and the angles.

S. CalahanOctober 2010

Classifying triangles by angles

Acute triangle – all of the angles are acute

Classifying triangles by angles

Obtuse triangle – one angles is obtuse

Classifying triangles by angles

Right triangle – one angles is 90°

Classify the triangle by it’s angles

85°

55° 40°

Right

Acute Triangle

Classify the triangle by it’s angles

60°

30°

Right

Right triangle

Classifying the triangle by it’s angles

110°

Right

Obtuse Triangle

Classify triangles by sides

Scalene triangle – no sides are congruent

Classify triangles by sides

Isosceles triangle – at least 2 sides are congruent.

Classify triangles by sides

Equilateral triangles – all sides of a triangle are congruent

Classify triangles by sides

Right

Isosceles triangle

Classify triangles by sides

Right

Scalene Triangle

Classify the triangle using the sides

Right

Equilateral Triangle

Classify the triangle using the sides

Right

Isosceles Triangle