Bell Ringer

Prove:

4x – 19 = 7x + 8, then x = -9

Supplementary Angles Theorem

If two angles are supplements of the same angle or of congruent angles, then the two angles are congruent.

Complementary Angles Theorem

If two angles are complements of the same angle or of congruent angles, then the two angles are congruent.

Give the supplement of each angle measure.

1. 20°

2. 86°

3. (3x)°

4. (x + 15)°

You try!

1. 15°

2. 66°

3. (2x)°

4. (x + 19)°

Give the supplement of each angle measure.

Give the complement of each angle measure.

1. 10°

2. 73°

3. (2x)°

4. (x - 11)°

You try 2!

1. 8°

2. 68°

3. (3x + 10)°

4. (6x)°

Give the complement of each angle measure.

Two angles are complementary. The measure of one angle is 22 degrees more than the measure of the other. Find the measure of each angle.

Two angles are supplementary. The measure of one angle is 6 degrees less than the measure of the other. Find the measure of each angle.

You try 3!

1. Two angles are supplementary. The measure of one angle is 22 degrees more than the measure of the other. Find the measure of each angle.

2. Two angles are complementary. The measure of one angle is 18 degrees more than the measure of the other. Find the measure of each angle.