Math magazine (cont.) WEEK 2 I DAY 3
Where Math Gets Real
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Where Math Gets Real
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Angle Relationships When angles share a ray, they are called angle pairs. Knowing the relationships between angle pairs can help you find unknown measures of angles. Where Math Gets Real
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YOUR TURN ✎ Use these definitions to classify angle pairs and find missing angle measures in the questions below.
*with white behind logo Complementary angles: Angles whose measures have a sum of 90° (a right angle) Supplementary angles: Angles whose measures have a sum of 180° (a straight line) Where Math Gets Real
Vertical angles: Angles opposite one another, formed when two lines intersect; these angles are always congruent (they have the same degree measure) Adjacent angles: Angles that have a common side and a common vertex (corner point) and do not overlap
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a
c
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m
66°
3A. Which pairs of angles shown above are vertical?
1A. Write and solve an equation to find the measure of angle m .
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3B. Which pairs of angles are adjacent?
1B. Are the angles above complementary, supplementary, vertical, and/or adjacent?
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3C. Angle b is 65°. What is the measure of angle a ?
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3D. What is the measure of angle c ?
2. Angle s is complementary to 38°. Write and solve an equation to find the measure of angle s .
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3E. What is the measure of angle d ?
s
38°
3F. What is the sum of the measures of angles a , b , c , and d ?
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JANUARY 16, 2017 > p. 14 Moon Math > ANGLE PROPERTIES
G7_Math_PE_WK1-3 004-067.indd 40 52 Scholar Zone Summer: Math
7/23/18 9:57 AM
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