Geometry

1. Shapes

1.1. Squares

1.1.1. Squares have four equal sides and four right angles

1.2. Rectangles

1.2.1. Rectangles have two sets of equal sides and has four right angles

1.3. Parallelograms

1.3.1. Parallelograms have two pairs of parallel sides. The opposite or facing sides of a parallelogram are of equal length and the opposite angles of a parallelogram are of equal measure.

1.4. Triangles

1.4.1. Equilateral

1.4.1.1. Equilateral Triangles have all three sides equal along with the same angle measurements.

1.4.2. Isosceles

1.4.2.1. Isosceles Triangles have two equal sides and two equal angle measurements.

1.4.3. Scalene

1.4.3.1. Scalene Triangles have three unequal sides and three unequal measurements.

1.5. Rhombus

1.6. Circles

2. Lines

2.1. Straight Lines

2.2. Parallel Lines

2.3. Perpendicular Lines

2.4. Mid Points

2.5. Angle Bisectors

3. Angles

3.1. Acute

3.2. Right

3.3. Obtuse