GEOMETRY 4-1 Classifying Triangles. Acute Triangle Three acute angles Triangle Classification By Angle Measures.

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Presentation transcript:

GEOMETRY 4-1 Classifying Triangles

Acute Triangle Three acute angles Triangle Classification By Angle Measures

Right Triangle One right angle Triangle Classification By Angle Measures

Obtuse Triangle One obtuse angle Triangle Classification By Angle Measures

Equiangular Triangle Three congruent acute angles Triangle Classification By Angle Measures

Classify Each Triangle According to Angle Measure

Equilateral Triangle Three congruent sides Triangle Classification By Side Lengths

Isosceles Triangle At least two congruent sides Triangle Classification By Side Lengths

Scalene Triangle No congruent sides Triangle Classification By Side Lengths

Classify Each Triangle by Side Length

Find the length of each side. 3x - 2 5x - 4 4x - 2

Example: Word Problem A steel mill produces roof supports by welding pieces of steel beams into equilateral triangles. Each side of the triangle is 18 feet long. How many triangles can be formed from 420 feet of steel beam?