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Geometry Angles

Record 1 to 21 of  21

Acute, Obtuse, Straight, Right, And Reflex Angles
An illustration showing acute, obtuse, straight, right, and reflex angles....
Adjacent 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...
Angle
Illustration of an angle...
Angle
Illustration that can be used to show the definition of an angle - an opening between two lines that intersect or meet....
Angle Bisector
Illustration showing that the bisector of a given angle is the locus of points equidistant from the sides of the angle....
Angle Bisector Drawn Parallel to A Side
Illustration to show that if through any point in the bisector of an angle a line is drawn parallel to either of the sides of the angle, the triangle thus formed is isosceles....
Angle Degrees 180
Angle of degree 180...
Angles With Parallel Sides
Illustration of two angles whose sides are parallel, each to each, to show they are either equal or supplementary....
Angles With Parallel Sides
Illustration of angles with parallel corresponding sides....
Angles With Parallel Sides
Illustration of angles with parallel sides going in the opposite direction....
Angles With Parallel Sides
Illustration of angles with parallel sides. "GH is parallel to and lies in the same direction as DE, and HI is parallel to but lies in the opposite direction to EF; hence, angle GHI is the supplement ...
Angles With Same Vertex
An illustration of angles with the same vertex made up of 4 lines....
Bisected Angle
Illustration to show that if an angle is bisected, and if a line drawn through the vertex perpendicular to the bisector, this line forms equal angles with the sides of the given angle....
Bisected Angle
Illustration to show that the bisector of one of two vertical angles bisects the other....
Bisected Angles
Illustration to show that the bisectors of two supplementary adjacent angles are perpendicular to each other....
Bisected Angles
Illustration to show that the bisector of two pairs of vertical angles formed by two intersecting lines are perpendicular to each other....
Obtuse And Reflex Angles
An illustration showing an angle the is greater than a right angle and less than a straight angle. This is an obtuse angle (solid curved arrow). The angle that is greater than a straight angle and l...
Plane Angle
An illustration of a plane angle with vertex E and sides EF and ED....
Straight Angle
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....
Superposition of Angles
Illustration of the superposition of two angles to compare magnitudes of the same kind....
Vertical Angles
Vertical angles are when two angles have the same vertex, and the sides of the one are prolongations of the sides of the other. In this illustration, a and b are vertical angles and c and d are verti...

 

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