Special Pairs of Angles Return to table of contents.
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Transcript of Special Pairs of Angles Return to table of contents.
Special Pairsof Angles
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Congruent Angles have the same angle measurement.
14 Are the two angles congruent?
75o110o
A Yes
B No
15 Are the two angles congruent angles?
40o
40
o
A Yes
B No
16 Are the two angles congruent?
75o105o
A Yes
B No
Complementary Angles are two angles with a sum of 90 degrees.
These two angles are complementary angles because their sum is 90.
Notice that they form a right angle when placed together.
Complementary Angles are two angles with a sum of 90 degrees.
These two angles are complementary angles because their sum is 90.
Although they aren't placed together, they can still be complementary.
17 What is the measure of A?
50A
18
57575757
57
57 57
What is the measure of A?
A
19 Tell whether the two angles are complementary?
Angle 1 = 63 degreesAngle 2 = 27 degrees
A Yes
B No
20 Tell whether the angles are complementary.
Angle 1 = 146 degrees Angle 2 = 44 degrees
A Yes
B No
Supplementary Angles are two angles with a sum of 180 degrees.
These two angles are supplementary angles because their sum is 180.
Notice that they form a straight angle when placed together.
Supplementary Angles are two angles with a sum of 180 degrees.
These two angles are supplementary angles because their sum is 180.
Although they aren't placed together, they can still be supplementary.
21 What is the measurement of angle A?
Angle A 125o
22 What is the measurement of angle A?
Angle A 40o
23 Tell whether the two angles are supplementary.
Angle 1 = 115 degrees Angle 2 = 65 degrees
A Yes
B No
24 Find the supplement of 51
25 Find the complement of 51
26 Find the complement of 27
27 Find the supplement of 27
28 Find the supplement of 102
29 Find the complement of 102