Triangle Angle Sum and Exterior Angle Theorem
Flashcard
•
Mathematics
•
9th - 11th Grade
•
Practice Problem
•
Hard
Standards-aligned
Wayground Content
FREE Resource
Student preview
16 questions
Show all answers
1.
FLASHCARD QUESTION
Front
What is the Triangle Angle Sum Theorem?
Back
The Triangle Angle Sum Theorem states that the sum of the interior angles of a triangle is always 180 degrees.
Tags
CCSS.8.G.A.5
2.
FLASHCARD QUESTION
Front
What is the Exterior Angle Theorem?
Back
The Exterior Angle Theorem states that the measure of an exterior angle of a triangle is equal to the sum of the measures of the two non-adjacent interior angles.
Tags
CCSS.8.G.A.5
3.
FLASHCARD QUESTION
Front
If angle A is 50 degrees and angle B is 60 degrees, what is angle C?
Back
Angle C = 180 - (50 + 60) = 70 degrees.
Tags
CCSS.7.G.B.5
4.
FLASHCARD QUESTION
Front
What is the measure of an exterior angle if the two non-adjacent interior angles are 40 degrees and 70 degrees?
Back
Exterior angle = 40 + 70 = 110 degrees.
Tags
CCSS.8.G.A.5
5.
FLASHCARD QUESTION
Front
How do you find the measure of an unknown angle in a triangle?
Back
You can find the measure of an unknown angle by subtracting the sum of the known angles from 180 degrees.
Tags
CCSS.8.G.A.5
6.
FLASHCARD QUESTION
Front
What is the relationship between the angles in a right triangle?
Back
In a right triangle, one angle is 90 degrees, and the sum of the other two angles is 90 degrees.
Tags
CCSS.8.G.A.5
7.
FLASHCARD QUESTION
Front
If one angle of a triangle is 90 degrees and another is 45 degrees, what is the third angle?
Back
The third angle = 180 - (90 + 45) = 45 degrees.
Tags
CCSS.8.G.A.5
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