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Math 2Y

Math 2Y. 45 ° -45 ° -90 ° Triangles. 45-45-90 Δ Theorem. In a 45-45-90 Δ :. hypotenuse =. leg = x. 45 o. __. x. __. 45 o. __. __. x. Example #1: Find c. Remember to label your drawing with x, x and x√2!!. 5. x =. c. = x√2. c = 5 √2. __. 45°. __. 5. = x.

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Math 2Y

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  1. Math 2Y 45°-45°-90° Triangles

  2. 45-45-90 Δ Theorem • In a 45-45-90 Δ: hypotenuse = leg = x 45o __ x __ 45o __ __ x

  3. Example #1: Find c Remember to label your drawing with x, x and x√2!! 5 x = c = x√2 c = 5√2 __ 45° __ 5 = x

  4. Example #2: Find f. __ __ f Rationalize! x = x 45° 12 = x√2 f = 6√2

  5. Assignment Use your textbook… pg. 153: #1-12 #14, 16, 18, 20, 22 (Be sure to copy the picture and label your sides!)

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