Missing angles in triangles
Flashcard
•
Mathematics
•
5th Grade
•
Hard
+4
Standards-aligned
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the sum of the angles in a triangle?
Back
The sum of the angles in a triangle is always 180°.
Tags
CCSS.8.G.A.5
2.
FLASHCARD QUESTION
Front
If one angle in 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 do you call an angle that is less than 90°?
Back
An acute angle.
Tags
CCSS.4.G.A.1
4.
FLASHCARD QUESTION
Front
What do you call an angle that is greater than 90° but less than 180°?
Back
An obtuse angle.
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
If two angles in a triangle are 50° and 60°, what is the measure of the third angle?
Back
The third angle is 70°.
Tags
CCSS.8.G.A.5
7.
FLASHCARD QUESTION
Front
Which of the following sets of angles can form a triangle: 30°, 60°, 90° or 30°, 60°, 120°?
Back
30°, 60°, 90° can form a triangle.
Tags
CCSS.7.G.A.2
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