What is the sum of the angles in a triangle?
Missing Angle Practice

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•
Mathematics
•
5th - 9th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
The sum of the angles in a triangle is always 180 degrees.
2.
FLASHCARD QUESTION
Front
What is an acute angle?
Back
An acute angle is an angle that measures less than 90 degrees.
3.
FLASHCARD QUESTION
Front
What is an obtuse angle?
Back
An obtuse angle is an angle that measures more than 90 degrees but less than 180 degrees.
4.
FLASHCARD QUESTION
Front
What is a right angle?
Back
A right angle is an angle that measures exactly 90 degrees.
5.
FLASHCARD QUESTION
Front
What is the exterior angle theorem?
Back
The exterior angle theorem states that the measure of an exterior angle is equal to the sum of the measures of the two opposite interior angles.
6.
FLASHCARD QUESTION
Front
If one angle in a triangle is 60 degrees and another is 90 degrees, what is the third angle?
Back
The third angle is 30 degrees.
7.
FLASHCARD QUESTION
Front
What is an isosceles triangle?
Back
An isosceles triangle is a triangle that has at least two sides of equal length.
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