For example, a right triangle may have angles that form simple relationships, such as 45°–45°–90° This is called an "anglebased" right triangle A "sidebased" right triangle is one in which the lengths of the sides form ratios of whole numbers, such as 3 4 5, or of other special numbers such as the golden ratioPythagorean Triples A right triangle where the sides are in the ratio of integers (Integers are whole numbers like 3, 12 etc) For example, the following are pythagorean triples There are infinitely many pythagorean triples There are 50 with a hypotenuse less than 100 alone Here are the first few 345 , 6810 , , , etcWhen a triangle's sides are a Pythagorean Triple it is a right angled triangle See Pythagoras' Theorem for more details Example The Pythagorean Triple of 3, 4 and 5 makes a

Notes Chapter 8 3 Trigonometry A Trigonometric Ratio Is A Ratio Of The Side Lengths Of A Right Triangle The Trigonometric Ratios Are Sine Opposite Ppt Download