Chapter 4

Vocabulary

Acute angles=any angle smaller than 90 degrees
Obtuse angle= any angle larger than 90 degrees
Right angle= 90 degrees
Acute triangle= a triangle with 3 acute angles
Obtuse triangle= a trianle with on obtuse angle
Equiangular triangle=3 congruent acute angles
Right triangle= 1 right angle
Equilateral triangle=a triangle with 3 congruent sides
Isosceles triangle=a triangle with at least 2 congruent sides
Scalene Triangle= No congruent sides