Complementary and Supplementary Angles

Question 1

ACD and BCDBCE and ACDECA and ACDDBC and ACE

Revolt · Accepted Answer

ACD and BCD

Question 2

additionreflexivesubstitutionsymmetric

Revolt · Accepted Answer

substitution

Question 3

123

Revolt · Accepted Answer

2

Question 4

complementary anglescongruent anglesright anglessupplementary angles

Revolt · Accepted Answer

supplementary angles; Selection 1: supplementary angles; Selection 2: ACD and BCD

Question 5

mB = [___]°

Revolt · Accepted Answer

Part 1: 50; Part 2: 109507; 50

Question 6

mC = [___]°

Revolt · Accepted Answer

130

Question 7

Complete the missing parts of the paragraph proof.

Revolt · Accepted Answer

By the definition of angles, the sum of the measures of angles 1 and 2 is 180 degrees. Likewise, the sum of the measures of angles is 180 degrees. By the property, m1 + m2 = m3 + m2. Subtract the meas: supplementary; By the definition of angles, the sum of the measures of angles 1 and 2 is 180 degrees. Likewise, the sum of the measures of angles is 180 degrees. By the property, m1 + m2 = m3 + m2. Subtract the meas: 3 and 2; By the definition of angles, the sum of the measures of angles 1 and 2 is 180 degrees. Likewise, the sum of the measures of angles is 180 degrees. By the property, m1 + m2 = m3 + m2. Subtract the meas: substitution; By the definition of angles, the sum of the measures of angles 1 and 2 is 180 degrees. Likewise, the sum of the measures of angles is 180 degrees. By the property, m1 + m2 = m3 + m2. Subtract the meas: 2

Question 8

What is the measure of Angle EDH?

Revolt · Accepted Answer

50°

Question 9

What is the measure of Angle CBE?

Revolt · Accepted Answer

72°

Question 10

Based on the diagram, which reason justifies this statement?If ∠CEF is complementary to ∠DCF, then∠DCF ≅ ∠FEG.

Revolt · Accepted Answer

Complements of the same angle are congruent.

Complementary and Supplementary Angles Answers

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