Angle Addition Review
Flashcard
•
Mathematics
•
9th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the Angle Addition Postulate?
Back
The Angle Addition Postulate states that if point D is in the interior of ∠ABC, then m∠ABD + m∠DBC = m∠ABC.
2.
FLASHCARD QUESTION
Front
What are the sides of an angle?
Back
The sides of an angle are the rays that form the angle. For example, in ∠ABC, the sides are ray AB and ray AC.
3.
FLASHCARD QUESTION
Front
How do you find the measure of an angle when given two adjacent angles?
Back
To find the measure of an angle formed by two adjacent angles, use the Angle Addition Postulate: m∠ABD + m∠DBC = m∠ABC.
4.
FLASHCARD QUESTION
Front
What is the definition of a ray?
Back
A ray is a part of a line that starts at a point and extends infinitely in one direction.
5.
FLASHCARD QUESTION
Front
What is the difference between an angle and a straight angle?
Back
An angle is formed by two rays with a common endpoint, while a straight angle measures 180 degrees and is formed by two rays that point in opposite directions.
6.
FLASHCARD QUESTION
Front
If m∠JKL = 80°, what is the measure of its complement?
Back
The measure of the complement of an angle is found by subtracting the angle from 90°. Therefore, the complement of 80° is 10°.
7.
FLASHCARD QUESTION
Front
What is the definition of congruent angles?
Back
Congruent angles are angles that have the same measure.
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