Lesson 1.6: Complementary and Supplementary Angles

Question 1

Angles 1 and 2 form a right angle.

Revolt · Accepted Answer

complementary

Question 2

Given: intersects at point C. Prove: DCB ECA

Revolt · Accepted Answer

linear pair postulate

Question 3

Angle B measures 60°. What is the measure of the angle that is complementary to angle B?

Revolt · Accepted Answer

30°

Question 4

Angles A and B are supplementary. Angle A has a measure of 80°. What is the measure of angle B? The measure of angle B is °.

Question 5

Angles A and B are supplementary. Angle A has a measure of 80°. What is the measure of angle B? The measure of angle B is °.

Question 6

Angles A and B are complementary.

Revolt · Accepted Answer

34

Question 7

Rectangle QRST is shown. Angle QRT is congruent to angle STR, and angle STR is complementary to angle QTR.

Question 8

Triangle ABC is a right triangle.

Revolt · Accepted Answer

They are complementary.

Question 9

Points A, B, and C are on line AC.

Revolt · Accepted Answer

40°

Question 10

Figure LMNO is a parallelogram.Angles L and M are supplementary. What is the sum of their measures? The sum of the measures of angles L and M is °.

Revolt · Accepted Answer

180

Lesson 1.6: Complementary and Supplementary Angles Answers