Pre-Algebra
When two line segments meet, that point is called a vertex. Also, an angle is always formed. The most common way to measure angles is in degrees. A degree is ¹⁄₃₆₀ of a circle.
loading...
Basic Geometry
Angles
Triangles
Quadrilaterals
Perimeter
Area of a Square
Area of a Rectangle
Area of a Triangle
Pythagorean Theorem
Congruent Angles
Congruent Lines
Two Similar Triangles
Similar Triangles Within Each Other
Two Similar Quadrilaterals