Angles in a trigangle add up to what
180°
Angles in a quadrilateral add up to what
360°
Angles in a pentagon add up to what
540°
Angles in a hexagon add up to what
720°
What is a regaular shape
What are irregular shapes
What is the angle sum of a polygon
(n-2) x 180
How to find exterior angle
360/number of sides
How to find interior angle
180-exterior angle