Angles · Grade 4
In Grade 4 you learn: right angles.
An angle measures an amount of turn. We measure angles in degrees with a protractor and sort them by size: acute, right, obtuse, straight and reflex.
In Grade 4 you learn: right angles.
An angle measures an amount of turn. We measure angles in degrees with a protractor and sort them by size: acute, right, obtuse, straight and reflex.