90°, 45°, 45° are isosceles right triangles and are special right triangles.
90°, 30°, 60° are the more common right triangles.
For the calculator on this site, first enter the length of one side length. Below you need to select the short side of the 45 45 90 degree isosceles right triangle, or the middle side, or the hypotenuse; or 30 60 90 The waist of the right triangle, or the bevel, the result is immediately available, the length of the other two sides of the triangle, and the area of the triangle.
Input length: 5
What's the length?
45 45 90 triangle > Waist? or Hypotenuse?
Choice: waist
When the right side of a 45 45 90 right triangle is equal to 5.
Oblique edge is equal to 7.0711
Triangle area equals 12.5
Number of significant digit: 5
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