. If measures of angles of a ∆ are 450 , 450 , 900 then the length of each side is 1/✔2 x hypotenuse. Proof: In ∆ ABC,angle B = 900 , angles A and C are 450 each BC = AB By Pythagoras theorem AB2 + _____ = AC2 2AB2 = _____ AB2 = _____ AB2 = 1/✔2 AC
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d
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