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The Hypotenuse of a Right-angled Triangle is 1 Meter Less than Twice the Shortest Side. If the Third Side 1 Meter More than the Shortest Side, Find the Side, Find the Sides of the Triangle. - Mathematics

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Question

The hypotenuse of a right-angled triangle is 1 meter less than twice the shortest side. If the third side 1 meter more than the shortest side, find the side, find the sides of the triangle.

Solution

Let the shortest side be x m.

Therefore, according to the question: 

Hypotenuse=`(2x-1)m` 

Third side =(x+1)m

On applying Pythagoras theorem, we get 

`(2x-1)^2=(x+1)^2+x^2` 

⇒`4x^2-4x+1=x^2+2x+1+x^2` 

⇒ `2x^2-6x=0` 

⇒`2x(x-3)=0` 

⇒` x=0  or  x=3` 

The length of the side cannot be 0; therefore, the shortest side is 3 m. Therefore,  

Hypotenuse =`(2xx3-1)=5m` 

Third side = `(3+1)=4m`

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Chapter 10: Quadratic Equations - Exercises 5

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RS Aggarwal Mathematics [English] Class 10
Chapter 10 Quadratic Equations
Exercises 5 | Q 71
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