Angles And Parallel Lines Worksheet With Answers Page 8

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C. Complementary and Supplementary Angles
Angles are often described in pairs. There are three terms you will need to be familiar
with in order to do this; adjacent angles, complementary angles, and supplementary
angles.
Adjacent angles: _______________________________________________________
______________________________________________________________________
Complementary angle: __________________________________________________
______________________________________________________________________
Supplementary angle: __________________________________________________
______________________________________________________________________
Note: if an angle is greater than 90º or 180º then it has no complement or supplement
angle exists.
Example 4: Given each of the following angles, determine the size of the complement
and/or the size of the supplement (if they exist).
a) 65º
c) 115º
b) 30º
d) 210º
Worksheet: Complementary and Supplementary Angles
Math 10 Workplace
Marsh

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