How many right angles do you need to add to get an angle which is equal to angle around a point?
Angle around a point is 360∘. One right angle measures 90∘. Therefore, you need 4 right angles to get 360∘.
How many right angles do you need to add to get a straight angle?
How many right angles do you need to add, to get a straight angle?
How many right angles do you need to add to get a 360 degrees?
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Angles around a point will always add up to 360 degrees.