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Trigonometry. 45° Triangle. By Pythagoras. x 2 = 1 2 + 1 2 . x 2 = 2. x = √2. Let the leg = s. Hypotenuse = s√2. x = √ 2 x 2 √ 2. h = 9 √ 2. x = 4. 6 = x . √ 2. x = 6 / √2. x = 6√2 / 2. x = 3√ 2. 30°,60° Triangle. By Pythagoras. 30. 2 2 = 1 2 + x 2 . √3.
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Trigonometry 45° Triangle By Pythagoras x2 = 12 + 12 x2 = 2 x = √2 Let the leg = s Hypotenuse = s√2
x= √2 x 2√2 h = 9√2 x= 4
6= x . √2 x = 6/√2 x = 6√2/2 x= 3√2
30°,60° Triangle By Pythagoras 30 22 = 12 + x2 √3 x2 = 3 x = √3 60 1 2
30 30 60 60 Let the short leg = s Hypotenuse = 2s Long Leg = s√3
Hypotenuse = 2s f = 10√3/3