👉 Learn how to solve for an unknown variable using parallel lines and transversal theorems. Two lines are said to be ...

Learn the basics of co-terminal angles. An angle is a figure formed by two rays that have a common endpoint. The two rays are ...

Interior angles in a triangle add up to 180˚. Triangles close triangleA polygon with three straight sides. have three sides, therefore they have three angles. Interior angles in a triangle sum to a ...

Polygons can be regular or irregular in shape. A polygon is a closed 2D shape with at least three sides. A regular polygon is a polygon with all equal sides and angles. An irregular polygon is a ...