### Angle Degrees 180

Angle of degree 180

### Bisected Angles

Illustration to show that the bisectors of two supplementary adjacent angles are perpendicular to each…

### Angles With Parallel Sides

Illustration of angles with parallel sides. "GH is parallel to and lies in the same direction as DE,…

### Relationships Between 4 Angles

Illustration showing four angles that can be used to define different relationships, such as adjacent,…

### Relationships Between 4 Angles

Illustration showing four angles that can be used to define different relationships, such as adjacent,…

### Relationships Between 6 Angles

Illustration showing six angles that can be used to define different relationships, such as adjacent,…

### Supplementary Angles

Illustration of supplementary angles. Two angles whose sum is a straight angle.

### Supplementary Angles

Illustration of supplementary angles. Two angles whose sum is a straight angle. This can be used tow…

### Supplementary Angles

Illustration of supplementary angles. Two angles whose sum is a straight angle. This can be used tow…

### Supplementary Angles

Illustration that can be used to show supplementary angles. The angles form a straight line.

### Supplementary and Right Angles

Illustration showing angles 1 and 2 are supplementary and angles ACD and DCB are supplementary. Also,…

### Angles With Parallel Sides

Illustration of two angles whose sides are parallel, each to each, to show they are either equal or…

### Flashcard of a Straight angle

A flashcard featuring an illustration of a Straight angle

### Parallel Lines Cut By A Transversal

Illustration showing that when two parallel lines are cut by a transversal, the two interior angles…

### Angles With Perpendicular Sides Are Equal or Supplementary Proof

Illustration used to prove "Two angles whose sides are perpendicular each to each are either equal or…

### 2 Angles With Parallel Sides Theorem

Illustration used to prove the theorem, "Two angles whose sides are parallel, each to each, are either…

### 2 Angles With Perpendicular Sides Theorem

Illustration used to prove the theorem, "Two angles whose sides are perpendicular, each to each, are…