45-45-90 Special Right Triangle

Videos, worksheets, stories and songs to help Grade 8 students learn about the 45-45-90 special right triangle.



45-45-90 Triangles
A 45-45-90 triangle is a special type of isosceles right triangle where the two legs are congruent to one another and the non-right angles are both equal to 45 degrees. Many times, we can use the Pythagorean theorem to find the missing legs or hypotenuse of 45-45-90 triangles. The ratio of the sides to the hypotenuse is always 1:1:square root of two.



Introduction to 45-45-90 Triangles




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