Interior Angles of Triangles

Flashcard
•
Mathematics
•
7th - 9th Grade
•
Hard
+1
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the sum of the interior angles of a triangle?
Back
The sum of the interior angles of a triangle is always 180°.
Tags
CCSS.8.G.A.5
2.
FLASHCARD QUESTION
Front
If one angle of a triangle is 90°, what type of triangle is it?
Back
It is a right triangle.
Tags
CCSS.4.G.A.2
3.
FLASHCARD QUESTION
Front
What is an acute angle?
Back
An acute angle is an angle that measures less than 90°.
Tags
CCSS.4.G.A.1
4.
FLASHCARD QUESTION
Front
What is an obtuse angle?
Back
An obtuse angle is an angle that measures more than 90° but less than 180°.
Tags
CCSS.4.G.A.1
5.
FLASHCARD QUESTION
Front
How do you find the measure of a missing angle in a triangle?
Back
Subtract the sum of the known angles from 180°.
Tags
CCSS.8.G.A.5
6.
FLASHCARD QUESTION
Front
Can a triangle have two obtuse angles?
Back
No, a triangle cannot have two obtuse angles because the sum of the angles would exceed 180°.
Tags
CCSS.8.G.A.5
7.
FLASHCARD QUESTION
Front
What are the three types of triangles based on their angles?
Back
The three types are acute triangle, right triangle, and obtuse triangle.
Tags
CCSS.4.G.A.2
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