 Right Triangle – A triangle with one right angle.  Hypotenuse – Side opposite the right angle and longest side of a right triangle.  Leg – Either.

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Presentation transcript:

 Right Triangle – A triangle with one right angle.  Hypotenuse – Side opposite the right angle and longest side of a right triangle.  Leg – Either of the two sides that form the right angle. Leg Hypotenuse

 In a right triangle, if a and b are the measures of the legs and c is the measure of the hypotenuse, then a 2 + b 2 = c 2.  This theorem is used to find the length of any right triangle when the lengths of the other two sides are known. b a c

 Example 1: Find the length of the hypotenuse of a right triangle if a = 3 and b = c a 2 + b 2 = c 2

 Example 2: Find the length of the leg of the following right triangle a a 2 + b 2 = c 2 __________________

 Example 3: Find the length of the hypotenuse c when a = 11 and b = 4. Solution Solution 11 4 SOLUTION c

 Copy this triangle into your maths books.  Complete using the Pythagoras’ Theorem formula. C 12 10