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TRIANGLES. CLASSIFICATIONS, ANGLES AND MORE!!. Free powerpoints at http://www.worldofteaching.com. Different Types of Triangles. There are several different types of triangles. You can classify a triangle by its sides and its angles.
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TRIANGLES CLASSIFICATIONS, ANGLES AND MORE!! Free powerpoints at http://www.worldofteaching.com
Different Types of Triangles • There are several different types of triangles. • You can classify a triangle by its sides and its angles. • There are THREE different classifications for triangles based on their sides. • There are FOUR different classifications for triangles based on their angles.
Classifying Triangles by Their Sides • EQUILATERAL – 3 congruent sides • ISOSCELES – at least two sides congruent • SCALENE – no sides congruent EQUILATERAL ISOSCELES SCALENE
Classifying Triangles by Their Angles • EQUIANGULAR – all angles are congruent • ACUTE – all angles are acute • RIGHT – one right angle • OBTUSE – one obtuse angle EQUIANGULAR ACUTE RIGHT OBTUSE
Can You Classify the Different Triangles in the Picture Below? Classify the following triangles: AED, ABC, ACD, ACE
The Classifications… • Triangle AED = Equilateral, Equiangular • Triangle ABC = Equilateral, Equiangular • Triangle ACD = Isoceles, Obtuse • Triangle ACE = Scalene, Right • So how did you do?