Complementary and Supplementary Angles Answers

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Which pair of angles is complementary?

A
[Image: 2 angles are shown. One angle is 69 degrees and th...]
Option A
B
[Image: 2 right angles are shown....]
Option B
C
[Image: 2 angles are shown. One angle is 56 degrees and th...]
Option C
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What is the value of y?

Answers:
y =:10
mJKM = °:106
mMKL = °:74
109461

53X 66✔ 106

A
53
B
X 66
C
✔ 106
109462

✔ 74114X 127

A
✔ 74
B
114
C
X 127
109463

Complete the missing parts of the paragraph proof.

Answers:
By the , we know that angle 1 is congruent to angle 3. The measure of angle 1 equals the measure of angle 3 by the definition of angles. Then, using the property, the measure of angle 3 is degrees.:congruent complements theorem
By the , we know that angle 1 is congruent to angle 3. The measure of angle 1 equals the measure of angle 3 by the definition of angles. Then, using the property, the measure of angle 3 is degrees.:congruent
By the , we know that angle 1 is congruent to angle 3. The measure of angle 1 equals the measure of angle 3 by the definition of angles. Then, using the property, the measure of angle 3 is degrees.:substitution
By the , we know that angle 1 is congruent to angle 3. The measure of angle 1 equals the measure of angle 3 by the definition of angles. Then, using the property, the measure of angle 3 is degrees.:35
109464

complementary✔ congruent right

A
complementary
B
✔ congruent
C
right
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additionreflexive✔ substitution

A
addition
B
reflexive
C
✔ substitution
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✔ 35X 4590

A
✔ 35
B
X 45
C
90
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Which angle pairs are supplementary? Check all that apply.

A
∠1 and ∠2
B
∠4 and ∠3
C
∠4 and ∠5
D
∠7 and ∠5
E
∠3 and ∠6
109469

Complete the missing parts of the paragraph proof.

Answers:
By the , we know that angle 1 is congruent to angle 3. The measure of angle 1 equals the measure of angle 3 by the definition of angles. Then, using the property, the measure of angle 3 is degrees.:congruent complements theorem
By the , we know that angle 1 is congruent to angle 3. The measure of angle 1 equals the measure of angle 3 by the definition of angles. Then, using the property, the measure of angle 3 is degrees.:congruent
By the , we know that angle 1 is congruent to angle 3. The measure of angle 1 equals the measure of angle 3 by the definition of angles. Then, using the property, the measure of angle 3 is degrees.:substitution
By the , we know that angle 1 is congruent to angle 3. The measure of angle 1 equals the measure of angle 3 by the definition of angles. Then, using the property, the measure of angle 3 is degrees.:35

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