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Angles (Reflex (180 to 360, image), Right angle (90, image), Obtuse (90 to…
Angles
Reflex
180 to 360
Right angle
90
Obtuse
90 to 180
Acute
0 to 90
Angles around a point add up to
360
Angles in a triangle add up to
180
Measured with a protractor
Careful to line up
Angles on a straight line add up to
180
Angles in a quadrilateral add up to
360
Vertically opposite angles
Are equal
Parallel Lines
Supplementary angles add up to
180
Measured in degrees
