4.2 Angles of a Triangle Flashcards
0
Q
Triangle Sum Theorem
A
The sum of the measures of the interior angles of a triangle is 180 degrees
1
Q
Interior Angle
A
1 of the 3 original angles in a triangle
2
Q
Third Angles Theorem
A
If 2 angles of 1 triangle are congruent to 2 angles of a 2nd triangle, then the 3rd angles are also congruent
3
Q
The acute angles of a right angle are…
A
Complementary
4
Q
Exterior Angles Theorem
A
The measure of an exterior angle of a triangle is equal to the sum of the measures of the 2 remote interior angles
5
Q
Exterior Angle
A
Angles that are adjacent to and form a liner pair with interior angles of a triangle
