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I found an answer from en.wikipedia.org

Right angle - Wikipedia


In geometry and trigonometry, a right angle is an angle of exactly 90° (degrees), corresponding .... length, will create a hypotenuse (the longer line opposite the right angle that connects the two measured endpoints) of exactly 5 units in length.


For more information, see Right angle - Wikipedia

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I found an answer from en.wikipedia.org

Hypotenuse - Wikipedia


In geometry, a hypotenuse is the longest side of a right-angled triangle, the side opposite of the right angle. The length of the hypotenuse of a right triangle can ...


For more information, see Hypotenuse - Wikipedia

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I found an answer from www.britannica.com

trigonometry | Definition, Formulas, Ratios, & Identities | Britannica.com


These six trigonometric functions in relation to a right triangle are displayed in the figure. ... opposite to the right angle (the hypotenuse) is called the sine of A, or sin A; ... Of course, this distinction is not always absolute: the Pythagorean theorem, ... in question—in effect, the cotangent of the angle between the base and face.


For more information, see trigonometry | Definition, Formulas, Ratios, & Identities | Britannica.com

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I found an answer from www.quora.com

How to always know which part of the right angled triangle is the ...


The right angle is always 90° by definition and the Hypotenuse is the side opposite that right angle. If you select the other angle to be θ, then O and A switch , but ...


For more information, see How to always know which part of the right angled triangle is the ...

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I found an answer from mathworld.wolfram.com

Right Triangle -- from Wolfram MathWorld


is a right triangle, and that the converse does not hold (Haddon 2003, pp. ... The hypotenuse of a right triangle is a diameter of the triangle's circumcircle, so the ...


For more information, see Right Triangle -- from Wolfram MathWorld

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Can a right angled triangle have altitude greater than its hypotenuse ...


Altitude c of side BC < hypotenuse b Altitude a of side AB< hypotenuse b Midpoint M of hypotenuse CA is ... Hence altitudes of a right angled triangle can not be more than hypotenuse. ... Quora User's answer to What is the toughest question ever asked in any interview? .... How many faces does a right angle triangle have?


For more information, see Can a right angled triangle have altitude greater than its hypotenuse ...

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I found an answer from math.stackexchange.com

In a 30-60 right triangle the side opposite the 30 degree angle is half ...


One of the angles is the same as one of the angles in the original equilateral triangle, .... Given the 30,60,90,triangle,rotate the vertex at 90 about the hypotenuse ...


For more information, see In a 30-60 right triangle the side opposite the 30 degree angle is half ...

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I found an answer from math.stackexchange.com

trigonometry - How would a triangle for sin 90 degree look ...


Feb 7, 2017 ... However, one must always look carefully and rigorously to definitions. The sine of an ... The hypotenuse side is the one facing the right angle.


For more information, see trigonometry - How would a triangle for sin 90 degree look ...

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I found an answer from mathworld.wolfram.com

Isosceles Right Triangle -- from Wolfram MathWorld


and 90 degrees . For an isosceles right triangle with side lengths a , the hypotenuse has length sqrt(2)a , and the area is A=a^2/2 . The hypotenuse length for a= ...


For more information, see Isosceles Right Triangle -- from Wolfram MathWorld