ClipArt ETC
Angle of degree 180

Angle Degrees 180

Angle of degree 180

An illustration showing a straight angle. When the sides of an angle extend in opposite directions, so as to be in the same straight line, the angle is called a straight angle.

Straight Angle

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

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

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 them. Angles BOD and AOD are adjacent

Adjacent Angles

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

An illustration showing when one straight line meets another straight line and makes the adjacent angles equal, each of these angles is called a right angle.

Right Angles With Same Vertex

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

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

Supplementary Angles

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

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

Reindeer age articles, Arrow Straighteners

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

"The street called Straight can be seen starting at the right foreground of the picture and extending across the city from east to west. It is roofed all the way."—Webster, 1920

Damascus

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

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

Girl Standing

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

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.

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.

"If used, the Optional Movement Lane Control sign shall be used for two or more movements from a specific lane or to emphasize permitted movements. If used, the Optional Movement Lane Control sign shall be located at the intersection. If used, the Optional Movement Lane Control sign shall indicate all permissible movements from specific lanes." -Federal Highway Administration, 2007

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…

"If used, the Optional Movement Lane Control sign shall be used for two or more movements from a specific lane or to emphasize permitted movements. If used, the Optional Movement Lane Control sign shall be located at the intersection. If used, the Optional Movement Lane Control sign shall indicate all permissible movements from specific lanes." -Federal Highway Administration, 2007

Optional Movement Lane Control, Outline

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

"If used, the Optional Movement Lane Control sign shall be used for two or more movements from a specific lane or to emphasize permitted movements. If used, the Optional Movement Lane Control sign shall be located at the intersection. If used, the Optional Movement Lane Control sign shall indicate all permissible movements from specific lanes." -Federal Highway Administration, 2007

Optional Movement Lane Control, Silhouette

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

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

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 is symmetrical with respect to the diagonal joining the vertices of the angles formed by the equal sides, and the diagonals are perpendicular to each other.

Quadrilateral with Symmetry

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

"A draftsman's instrument for ruling parallel lines. It consists of a triangle so attached to a straight-edge that it can be moved back and forth on it a distance predetermined by the adjustment of a set-screw. a, a straight-edge; b, triangle moving on <i>a</i> for a distance determined by the set of the micrometer scale <i>c</i>; d, spring for releasing triangle and keeping it in the end of its slot." -Whitney, 1889

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…

"If used, the Directional Arrow auxiliary sign shall be mounted below the route sign in directional assemblies, and displays a single- or double-headed arrow pointing in the general direction that the route follows." -Federal Highway Administration, 2007

Straight Arrow Auxiliary, Black and White

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

"If used, the Directional Arrow auxiliary sign shall be mounted below the route sign in directional assemblies, and displays a single- or double-headed arrow pointing in the general direction that the route follows." -Federal Highway Administration, 2007

Straight Arrow Auxiliary, Outline

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

"If used, the Directional Arrow auxiliary sign shall be mounted below the route sign in directional assemblies, and displays a single- or double-headed arrow pointing in the general direction that the route follows." -Federal Highway Administration, 2007

Straight Arrow Auxiliary, Silhouette

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

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

Axis of Symmetry

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