AnswersAZ-Common Core Geometry AComplementary and Supplementary Angles

Complementary and Supplementary Angles Answers

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Triangle ABC is a right triangle.

Question illustration
A
They are congruent.
B
They are complementary.
C
They are supplementary.
D
There is no relationship between them.
8

Given: intersects at point C. Prove: DCB ECA

Question illustration
A
linear pair postulate
B
given
C
definition of complementary angles
D
congruent complements theorem
10

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

Question illustration
A
They are congruent.
B
They are complementary.
C
They are supplementary.
D
They are right angles.
11

Angles 1 and 2 form a right angle.

Question illustration
A
linear
B
congruent
C
complementary
D
supplementary
12

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

A
30°
B
60°
C
120°
D
180°
13

Which statements are true about the angles in the diagram? Select three options.

A
Angle ACE is supplementary to angle BCD.
B
Angle BCE is supplementary to angle ACE.
C
Angle BCD is supplementary to angle BCE.
D
Angle ACE is congruent to angle BCE.
E
Angle BCD is congruent to angle ACE.
14

The figure shows three lines that intersect at point N.

Question illustration
A
42°
B
48°
C
132°
D
138°
15

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

Question illustration
A
40°
B
50°
C
60°
D
70°
16

Angles A and B are complementary.

Question illustration
A
34
B
56
C
68
D
79
17

Given: intersects at point C. Prove: DCB ECA

Question illustration
A
linear pair postulate
B
given
C
definition of complementary angles
D
congruent complements theorem
18

In the figure, RQS QLK.

Question illustration
A
36
B
72
C
108
D
144
19

Triangle ABC is a right triangle.

Question illustration
A
They are congruent.
B
They are complementary.
C
They are supplementary.
D
There is no relationship between them.

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