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8.1: Right Triangles Pythagorean Theorem Properties of Special Right Triangles

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What is the Pythagorean Theorem used for? to find the length of a missing side in a right triangle 5 4 n

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Pythagorean Theorem Formula a 2 + b 2 = c 2 a and b represent the legs c represents the hypotenuse

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Hypotenuse Leg a c Where is it located??? Always opposite of the 90 degree angle b Leg

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Remember!!! The Pythagorean Theorem can ONLY be used on Right Triangles. The Legs are ALWAYS the sides ADJACENT (next to) the 90 degree angle. C is ALWAYS the Hypotenuse (the slant). The Hypotenuse is ALWAYS opposite the 90 degree angle.

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What is the length of the hypotenuse in the triangle below? a 2 + b 2 = c h

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Plug in the value for each variable in the formula. a 2 + b 2 = c h = h 2

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What is the length of the hypotenuse in the triangle below? a 2 + b 2 = c = h = h 2 20 = h h

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What is the length of the hypotenuse in the triangle below? a 2 + b 2 = c = h = h 2 20 = h h 20 = h 5 2

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Try this one... Find the hypotenuse of the right triangle below? 6 4 h

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6 4 h a 2 + b 2 = c = h = h 2 52 = h 2 52 = h 7.21 = h = h = h 2 52 = h 2 52 = h 7.21 = h

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What is the length of the missing leg in the triangle below? 3 x 5 a 2 + b 2 = c 2 Try this one...

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Find the hypotenuse of the right triangle below? 5 3 x a 2 + b 2 = c x 2 = x 2 = 25 x 2 = 16 16x = x =

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