Classifying Triangles
Classifying Triangles
Finding the Missing Angles
Finding Missing Angles
Finding Missing Angles
100
acute
100
acute
100
35°
100
31°
100
One angle of a right triangle measures 80°. What is the measure of the other acute angle?
10°
200
obtuse
200
right
200
90°
200
Two of the angles in a triangle measure 64° and 29°. What is the measure of the third angle?
87°
200
Two of the angles in a triangle measure 114° and 40°. What is the measure of the third angle?
26°
300
yes
300
isosceles
300
33°
300
Two of the angles in a triangle measure 90° and 11°. What is the measure of the third angle?
79°
300
Two of the angles in a triangle measure 90° and 29°. What is the measure of the third angle?
61°
400
no
400
obtuse
400
30°
400
Two of the angles in a triangle measure 88° and 65°. What is the measure of the third angle?
27°
400
500
no
500
right
500
97°
500
Two of the angles in a triangle measure 85° and 53°. What is the measure of the third angle?
42°
500
One angle of a right triangle measures 50°. What is the measure of the other acute angle?
40°