Difference between revisions of "Special Right Triangles"
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==30-60-90 Special Right Triangles== | ==30-60-90 Special Right Triangles== | ||
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+ | 30-60-90 Triangles are special triangles where there is a certain ratio for the sides of the right triangle, as explained below. | ||
This concept can be used for any right triangle that has a <math>30^\circ</math> angle and a <math>60^\circ</math> angle. | This concept can be used for any right triangle that has a <math>30^\circ</math> angle and a <math>60^\circ</math> angle. | ||
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Finally, the hypotenuse of a 30-60-90 Triangle would have a length of <math>2x</math>. | Finally, the hypotenuse of a 30-60-90 Triangle would have a length of <math>2x</math>. | ||
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+ | There is also the ratio of <math>1:\sqrt3:2</math>. With 2 as the hypotenuse and 1 opposite of the 30 degrees. That leaves <math>\sqrt3</math> as the only length left. | ||
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+ | ==See Also== | ||
+ | [[Pythagorean triple]] |
Latest revision as of 04:05, 17 November 2022
45-45-90 Special Right Triangles
This concept can be used with any right triangle that has two angles.
A 45-45-90 Triangle is always isosceles, so let's call both legs of the triangle .
If that is the case, then the hypotenuse will always be .
30-60-90 Special Right Triangles
30-60-90 Triangles are special triangles where there is a certain ratio for the sides of the right triangle, as explained below.
This concept can be used for any right triangle that has a angle and a angle.
Let's call the side opposite of the angle .
Then, the side opposite of the angle would have a length of .
Finally, the hypotenuse of a 30-60-90 Triangle would have a length of .
There is also the ratio of . With 2 as the hypotenuse and 1 opposite of the 30 degrees. That leaves as the only length left.