### Angle Degrees 180

Angle of degree 180

### Straight Angle

An illustration showing a straight angle. When the sides of an angle extend in opposite directions,…

### Acute, Obtuse, Straight, Right, And Reflex Angles

An illustration showing acute, obtuse, straight, right, and reflex angles.

An illustration of two angles that are adjacent. They have the same vertex and a common side between…

### Right Angles With Same Vertex

An illustration showing when one straight line meets another straight line and makes the adjacent angles…

### Supplementary Angles

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

### Reindeer age articles, Arrow Straighteners

Arrow straighteners made from reindeer horns. Crafted during the Reindeer age.

### Damascus

"The street called Straight can be seen starting at the right foreground of the picture and extending…

### Girl Standing

A girl standing with her hands straight out in the air.

### Axis of Symmetry Drawn on a Hexagon

Illustration of an axis of symmetry drawn with respect to a hexagon.

### Axis of Symmetry Drawn on a Hexagon

Illustration of an axis of symmetry drawn with respect to a hexagon.

### Optional Movement Lane Control, Black and White

"If used, the Optional Movement Lane Control sign shall be used for two or more movements from a specific…

### Optional Movement Lane Control, Outline

"If used, the Optional Movement Lane Control sign shall be used for two or more movements from a specific…

### Optional Movement Lane Control, Silhouette

"If used, the Optional Movement Lane Control sign shall be used for two or more movements from a specific…

### Axis of Symmetry Drawn on a Quadrilateral

Illustration of an axis of symmetry drawn with respect to a quadrilateral.

Illustration of a quadrilateral which has two adjacent sides equal and the other two sides equal. It…

### Section Liner, A Draftsman's Tool

"A draftsman's instrument for ruling parallel lines. It consists of a triangle so attached to a straight-edge…

### Straight Arrow Auxiliary, Black and White

"If used, the Directional Arrow auxiliary sign shall be mounted below the route sign in directional…

### Straight Arrow Auxiliary, Outline

"If used, the Directional Arrow auxiliary sign shall be mounted below the route sign in directional…

### Straight Arrow Auxiliary, Silhouette

"If used, the Directional Arrow auxiliary sign shall be mounted below the route sign in directional…

### Axis of Symmetry

Illustration of an axis of symmetry drawn with respect to a straight line.