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Question

The hypotenuse of a right triangle is 3m more than twice of the shortest side.
If the third side is 1m less than the hypotenuse. Find the shortest side?

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Solution

Let shortest side =x meter
Hypotenuse of right triangle =(3+2x) meter
Third side of right triangle =[1(3+2x)] meter
By pythagoras theorem,
(Hypotenuse)2=(Shortestside)2+(Thirdside)2
(3+2x)2=x2+(1(3+2x))2
9+4x2+12x=x2+(22x)2
9+3x2+12x=(2+2x)2
9+3x2+12x=4+4x2+8x
x2+4x+5=0
x24x5=0
(x5)(x+1)=0
x=5,1
Shortest side =5 meter.

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