Lengths of Sides in an Isosceles Right Triangle
*Remember that the you can find out if the triangle is a right triangle using the Pythagoream Theorem*
Isosceles Right Triangle: An isosceles right triangle is a triangle with one angle equal to ninety degrees and each of the other two angles equal to forty five degrees.
Relationship of Sides in a 30-60-90 Triangle
30-60-90 Triangle: A 30-60-90 Triangle: is a triangle with one angle equal to ninety degrees, one angle equal to thirty degrees, and one angle equal to sixty degrees.
Special Triangle Ratios
Special Triangle: A special triangle is a triangle that has particular internal angles that cause the sides to have a certain length relationship with each other.
What are some special triangles that can be identified?
The ratio of the sides of an isosceles right triangle is
The ratio of the sides of a 30-60-90 right triangle is