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Right angle

en.wikipedia.org/wiki/Right_angle

In geometry and trigonometry, a right angle is an angle that bisects the angle formed by two adjacent parts of a straight line. More precisely, if a ray is placed so ...

Right Angles - Math is Fun

www.mathsisfun.com/rightangle.html

Right Angles. A right angle is an internal angle which is equal to 90°. This is a right angle. Note the special symbol like a box in the angle. If we see this, it is a ...

Right Angle - math word definition - Math Open Reference

www.mathopenref.com/angleright.html

Right angles are one of the most common and interesting angles in all of geometry. It even has its own angle symbol. In the figure above, set the angle to 90° ...

Right Angle -- from Wolfram MathWorld

mathworld.wolfram.com/RightAngle.html

A triangle containing a right angle is called a right triangle. However, a triangle cannot contain more than one right angle, since the sum of the two right angles ...

Acute, right, & obtuse angles | Sal's old angle videos | Khan Academy

www.khanacademy.org/math/geometry/parallel-and-perpendicular-lines/old_angles/v/acute-right-and-obtuse-angles

Sal discusses acute, obtuse, and right angles and shows examples of each.

Right angle - definition of right angle by The Free Dictionary

www.thefreedictionary.com/right angle

An angle formed by the perpendicular intersection of two straight lines; an angle of 90°. American Heritage® Dictionary of the English Language, Fifth Edition.

What is a Right Angle? - Definition & Formula - Video & Lesson ...

study.com/academy/lesson/what-is-a-right-angle-definition-formula-quiz.html

In this lesson, you will learn about the properties that identify right angles. You will also discover where right angles can be found and learn...

Shape: Right Angle | Think Math!

thinkmath.edc.org/resource/shape-right-angle

These are not right angles: Image:RightAngleNot.png The two at the left are both obtuse ("wider" than a right angle) and the two at the right are both acute ...

Right angle Facts for Kids | KidzSearch.com

www.kidzsearch.com/wiki/Right_angle

Jul 5, 2013 ... A right angle is an angle with a measurement of 90 degrees. When two lines cross each other so that all the angles have the same size, the ...

Right angle | Define Right angle at Dictionary.com

www.dictionary.com/browse/right-angle

Right angle definition, the angle formed by two radii of a circle that are drawn to the extremities of an arc equal to one quarter of the circle; the angle formed by ...

Answers
right angle
NOUN
1.
the angle formed by two radii of a circle that are drawn to the extremities of an arc equal to one quarter of the circle; the angle formed by two perpendicular lines that intersect; an angle of 90°.
Source: Dictionary.com
right angles | Define right angles at Dictionary.com
dictionary.reference.com/browse/right angles
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