30 60 90 triangle rules and properties The most important rule to remember is that this special right triangle has one right angle and its sides are in an easytoremember consistent relationship with one another the ratio is a a√3 2a Worksheet 45 ¡45 ¡90 triangleand30 ¡60 ¡90 triangle 1For the 45 ¡45 ¡90 triangle, (the isosceles right triangle), there are two legs of length a and the hypotenuse of length 1 a 1 a 45 45 •Use the Pythagorean Theorem to write an equation relating the lengths of the sides of the triangleAnswer (1 of 3) A triangle is special because of the relationship of its sides Hopefully, you remember that the hypotenuse in a right triangle is the longest side, which is also directly across from the 90 degree angle It turns out that in a triangle
Question Video The Side Lengths Of 30 60 90 Triangles Nagwa