Angles and Triangle Sum Theorem
Flashcard
•
Mathematics
•
9th Grade
•
Practice Problem
•
Hard
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1.
FLASHCARD QUESTION
Front
What is the Triangle Sum Theorem?
Back
The Triangle Sum Theorem states that the sum of the interior angles of a triangle is always 180 degrees.
2.
FLASHCARD QUESTION
Front
If two angles are complementary, what is the sum of their measures?
Back
The sum of the measures of two complementary angles is 90 degrees.
3.
FLASHCARD QUESTION
Front
What is the measure of each angle in an equilateral triangle?
Back
Each angle in an equilateral triangle measures 60 degrees.
4.
FLASHCARD QUESTION
Front
How do you find the measure of a missing angle in a triangle?
Back
To find the measure of a missing angle in a triangle, subtract the sum of the known angles from 180 degrees.
5.
FLASHCARD QUESTION
Front
What is the measure of the third angle if two angles in a triangle are 50 degrees and 60 degrees?
Back
The measure of the third angle is 70 degrees (180 - (50 + 60)).
6.
FLASHCARD QUESTION
Front
If ∠A and ∠B are complementary and ∠A measures 45 degrees, what is ∠B?
Back
∠B measures 45 degrees (90 - 45).
7.
FLASHCARD QUESTION
Front
What is the measure of an angle that is supplementary to a 110 degree angle?
Back
The measure of the supplementary angle is 70 degrees (180 - 110).
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