Angles of Triangles
In a triangle, angle A=? B=10 C=160
10
In a triangle, angle A=30 B=49 C=?
101
Find the missing angle
103
In a triangle, angle A=20 B=40 C=?
120
In a triangle, angle A=20 B=20 C=?
140
In a triangle, angle A=10 B=10 C=?
160
In a triangle, angle A=? B=40 C=120
20
In a triangle, angle A=? B=75 C=80
25
Find the missing angle
27
In a triangle, angle A=? B=50 C=100
30
In a triangle, angle A=22 B=? C=120
38
Find the missing angle
39
Find the missing angle
40
Find the missing angle
50
Find the missing angle
51
Find the missing angle
53
Find the missing angle
58
In a triangle, angle A=80 B=? C=41
59
Find the missing angle
60
Find the missing angle
61
Find the missing angle
75
Find the missing angle
76
In a triangle, angle A=24 B=? C=79
77
In a triangle, angle A=? B=60 C=40
80
Find the missing angle
90
In a triangle, angle A=27 B=55 C=?
98
Acute Triangle
All angles are acute
Equiangular Triangle
All angles are congruent
Equilateral Triangle
All sides are congruent
Scalene Triangle
No sides are congruent
Obtuse Triangle
One obtuse angle
Right Triangle
One right angle
Triangle Angle Sum Theorem
The sum of the measures of the angles of a triangle = 180 degrees
If the measures of two angles of a triangle are 45 and 35 degrees, find the measure of the third angle.
The third angle measure is 100 degrees.
If the measures of two angles of a triangle are 90 and 45 degrees, find the measure of the third angle.
The third angle measure is 45 degrees.
If the measures of two angles of a triangle are 22 and 98 degrees, find the measure of the third angle.
The third angle measure is 60 degrees.
If the measures of two angles of a triangle are 50 and 60 degrees, find the measure of the third angle.
The third angle measure is 70 degrees.
Isosceles Triangle
Two sides are congruent