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Right angle


A right angle is equal to 90 degrees. A line segment (AB) drawn so that it forms right angles with a line (CD). In geometry and trigonometry, a right angle is an angle that bisects the angle formed ...

Angles - Acute, Obtuse, Straight and Right - Math is Fun


Degrees (Angle) · Twitter StumbleUpon Facebook ... Angles. An angle measures the amount of turn ... Right Angle, an angle that is 90° exactly. Obtuse Angle, an ...

Cool math .com - Types of Triangles


Definitions and formulas for triangles including right triangles, equilateral ... The right triangle has one 90 degree angle and two acute (< 90 degree) angles.

Types of angles - Basic mathematics


An angle whose measure is bigger than 90 degrees but less than 180 degrees. ... angle 2 are complementary angles because together they form a right angle.

Right Angle - math word definition - Math Open Reference


Definition of an right angle (one whose measure is exactly 90 degrees).

Measuring and Making Angles - For Dummies


The right angle is one of the most easily recognizable angles. It's in the form of ... It has a measure of more than 90 degrees but less than 180 degrees. Figure 5: ...

Types of Angles: Right, Straight, Acute & Obtuse | Study.com


Angles are everywhere. Learn about the different types of angles we use in mathematics, including right angles, acute angles, obtuse angles, and...

Types of Angles - Free Math Help


Acute angles have a measure less than 90 degress, right angles have a measure of exactly 90 degrees, and obtuse angles are greater than 90 degrees.

Trigonometry/Angles of a triangle sum to 180 Degrees - Wikibooks ...


This is a particularly special isosceles triangle because it is isosceles and it is a right triangle. There is one angle of 90 degrees and each of the two remaining ...

Relations and sizes - Right triangle facts - In Depth - Math.com


A right triangle has one angle equal to 90 degrees. A right triangle can also be an isosceles triangle--which means that it has two sides that are equal. A right ...

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What are Acute, Obtuse, Right, and Straight Angles? | Virtual Nerd


Knowing how to identify these angles is an important part of solving many ... right angle; right angles; straight; straight angle; straight angles; degree; degrees ...

Acute, right, & obtuse angles | Interpreting angles | Khan Academy


Sal discusses acute, obtuse, and right angles and shows examples of each. ... Interpreting angles. Acute, right, & obtuse angles · Measuring angles in degrees.

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


When a triangle has a right angle, it becomes a special type of triangle called a right triangle. Right triangles always have exactly one angle that is 90 degrees.