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Introduction to Angles
Grade Four · Lesson 29 · 1:56 · Animated lesson with English narration
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Transcript
Look. An angle. The ray turns around the vertex. Ninety degrees. A right angle. Keep turning. One hundred eighty degrees. A straight angle. Keep turning. Three hundred sixty degrees. A full angle.
A right angle is ninety degrees. A straight angle is one hundred eighty degrees. A full angle is three hundred sixty degrees.
Transcript generated from the lesson narration.
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