Triangle Sum Theorem
Flashcard
•
Mathematics
•
9th Grade
•
Practice Problem
•
Hard
Wayground Content
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15 questions
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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 of a triangle are 45 degrees and 55 degrees, what is the measure of the third angle?
Back
The third angle is 80 degrees (180 - 45 - 55 = 80).
3.
FLASHCARD QUESTION
Front
What is the measure of an angle in a triangle if the other two angles are 70 degrees and 40 degrees?
Back
The measure of the angle is 70 degrees (180 - 70 - 40 = 70).
4.
FLASHCARD QUESTION
Front
Find x if the angles of a triangle are x, 75 degrees, and 45 degrees.
Back
x = 60 degrees (180 - 75 - 45 = 60).
5.
FLASHCARD QUESTION
Front
What is the measure of the third angle if two angles of a triangle are 34 degrees and 38 degrees?
Back
The third angle is 108 degrees (180 - 34 - 38 = 108).
6.
FLASHCARD QUESTION
Front
If one angle of a triangle is 90 degrees, what type of triangle is it?
Back
It is a right triangle.
7.
FLASHCARD QUESTION
Front
What is the relationship between the angles in an isosceles triangle?
Back
In an isosceles triangle, the angles opposite the equal sides are equal.
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