| Angle Vocab | Angle Vocab (continued) | Angle Pair Relationships | Triangle Tidbits | Angle Measurement |
|---|---|---|---|---|
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What is an angle?
The intersection of two lines with a common endpoint.
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What are complementary angles?
Two angles that add up to 90°.
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What is the midpoint of a segment?
The point that divides a segment into two congruent segments.
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What is a greater than the third side?
The sum of the lengths of any two sides of a triangle must be...
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What is 180°?
The number of degrees in a triangle.
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What is an acute angle?
An angle with a measure less than 90°.
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What are supplementary angles?
Two angles that add up to 180°.
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What is a segment bisector?
A point, ray, line, line segment, or plane that intersects the segment at its midpoint.
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What is the largest side?
The largest angle is opposite...
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What is 90°?
The number of degrees ina right angle.
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What is a right angle?
An angle with a measure of 90°.
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What is the angle addition postulate?
Small angle + small angle = large angle.
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What are adjacent angles?
Two angles that share a common vertex and a common side; angles next to each other.
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What is a median?
A segment in a triangle from the vertex to the midpoint of the opposite side.
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What is 360°?
The number of degrees in a circle.
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What is an obtuse angle?
An angle with a measure greater than 90°.
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What is an angle bisector?
A ray that divides an angle into two congruent angles.
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What are vertical angles?
The angles opposite each other when two lines cross; congruent.
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What is an altitude?
A segment from any vertex perpendicular to the line containing the opposite side.
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What is 360°?
The number of degrees in a quadrilateral.
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What is a straight angle?
An angle with a measure of 180°.
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What is the vertex of an angle?
The middle letter in an angle name; the inside point of an angle.
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What is a linear pair?
Two adjacent angles forming a straight angle; supplementary.
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What is the smallest angle?
The smallest side is opposite...
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What is 180°?
The number of degrees in a line.
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