What's the property?
Angles on a straight line add up to 180 degrees.
What's the properties?
Angles in a quadrilateral add up to 360 degrees.
What's the properties?
Angles in a triangle add up to 180 degrees
What's the properties?
The exterior angle of a triangle is equal to the sum of the two opposite interior angles
What's the properties?
Angles around a point add up to 360 degrees.
What's the properties?
Vertically opposite angles are equal
