Finding a Missing side
Topic 19: Finding a Missing side in a 45°, 45°, 90° special Triangle
Dependent on which side is missing will determine your equation. The ratio you want to remember is x, x, x?2 which ?2=1.4, so if you are missing a leg side in an isosceles triangle the base angles are the same so both leg sides will be the same. Using the value of a side you can figure the hypotenuse side by X?2. If only given the Hypotenuse side, we must divide by ?2 so X?2/?2 which will equal X your leg sides and they will be the same. Given the hypotenuse side we must divide by the ?2 and then we rationalize multiplying that ?2/?2 and simplifying from there. Topic 19 Examples.pdfDownload Topic 19 Examples.pdf
Tutoring, M. M. (2016, Febuary 22). 45-45-90 Special Right Triangles. Retrieved from YouTube: https://www.youtube.com/watch?v=nQEqpVK7ZPA
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