Triangle Sum Theorem
Flashcard
•
Mathematics
•
7th 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 one angle of a triangle is 90 degrees, what can you say about the other two angles?
Back
The other two angles must sum to 90 degrees, making the triangle a right triangle.
3.
FLASHCARD QUESTION
Front
What are the measures of the angles in an equilateral triangle?
Back
In an equilateral triangle, all three angles measure 60 degrees.
4.
FLASHCARD QUESTION
Front
Can a triangle have two angles that are each greater than 90 degrees?
Back
No, a triangle cannot have two obtuse angles because the sum of the angles would exceed 180 degrees.
5.
FLASHCARD QUESTION
Front
If two angles of a triangle are 45 degrees and 85 degrees, what is the measure of the third angle?
Back
The third angle measures 50 degrees (180 - 45 - 85 = 50).
6.
FLASHCARD QUESTION
Front
What is the measure of each angle in a triangle with angles of 50°, 50°, and x°?
Back
x must be 80 degrees (50 + 50 + x = 180).
7.
FLASHCARD QUESTION
Front
What type of triangle has angles measuring 30°, 60°, and 90°?
Back
This is a right triangle.
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