Sum of Angles in Triangles (180 degrees)

Flashcard
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Mathematics
•
9th - 12th Grade
•
Easy
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the sum of the interior angles in a triangle?
Back
The sum of the interior angles in a triangle is always 180 degrees.
Tags
CCSS.8.G.A.5
2.
FLASHCARD QUESTION
Front
If one angle of a triangle is 90 degrees, 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 degrees.
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 degrees but less than 180 degrees.
Tags
CCSS.4.G.A.1
5.
FLASHCARD QUESTION
Front
How do you find the measure of an unknown angle in a triangle?
Back
Subtract the sum of the known angles from 180 degrees.
Tags
CCSS.8.G.A.5
6.
FLASHCARD QUESTION
Front
If two angles in a triangle are 50 degrees and 35 degrees, what is the measure of the third angle?
Back
The third angle measures 95 degrees (180 - (50 + 35)).
Tags
CCSS.8.G.A.5
7.
FLASHCARD QUESTION
Front
What is the relationship between the angles in an isosceles triangle?
Back
In an isosceles triangle, the two angles opposite the equal sides are equal.
Tags
CCSS.8.G.A.5
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