
Understanding and measuring angles

Flashcard
•
Mathematics
•
4th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is an angle?
Back
An angle is formed by two rays (sides) that share a common endpoint (vertex).
2.
FLASHCARD QUESTION
Front
What unit is used to measure angles?
Back
Angles are measured in degrees.
3.
FLASHCARD QUESTION
Front
What is a protractor?
Back
A protractor is a tool used to measure and draw angles in degrees.
4.
FLASHCARD QUESTION
Front
How many degrees are in a right angle?
Back
A right angle measures 90 degrees.
5.
FLASHCARD QUESTION
Front
What is an acute angle?
Back
An acute angle is an angle that measures less than 90 degrees.
6.
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.
7.
FLASHCARD QUESTION
Front
What is a straight angle?
Back
A straight angle measures exactly 180 degrees.
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