Congruent Supplements Theorem Linear Pair Theorem

Complement Theorem

Definition of Complementary Angles

Definition of a Right Angle

Definition of Supplementary Angles

Definition of Congruence

Vertical Angles Theorem

1.
If m∠ABC = 90°, then ∠ABC is a right angle.

2.
If m∠3 + m∠4 = 180°, then ∠3 and ∠4 are supplementary angles.

3.
If m∠PQR = m∠RST, then ∠PQR ≅ ∠RST
4.
If ∠1 and ∠2 form a right angle, then ∠1 and ∠2 are complementary angles.

5.
If ∠X and ∠Y are supplementary and ∠X and ∠Z are supplementary, then ∠Y ≅ ∠Z
6.
If ∠J and ∠K are vertical angels, then ∠J ≅ ∠K
7.
If ∠PQR and ∠STU are complementary, then m∠PQR + m∠STU = 90°
8.
If ∠5 and ∠6 form a linear pair, then ∠5 and ∠6 are supplementary angles.

angle prrof quiz