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Alenkinab [10]
3 years ago
14

One leg of a right triangle has a length of 15 m. the other sides have lengths that are consecutive integers. find the number of

meters in the perimeter.
Mathematics
1 answer:
Mamont248 [21]3 years ago
8 0

\text{Let one leg of a right triangle has length of 15 m.}\\
\\
\text{And the other two sides have lengths that are consecutive integers.}\\
\\
\text{let the length of other leg of right triangle is x,}\\
\text{then the length of the hypotenus of the right triangle would be}=x+1\\
\\
\text{Now in the right triangle, using the Pythagorean theorem, we have}\\
\\
\text{(Hypotenus)}^2=(\text{adjacent})^2+(\text{opposite})^2

\Rightarrow (x+1)^2=(15)^2+(x)^2\\
\\
\Rightarrow x^2+2x+1=225+x^2\\
\\
\Rightarrow x^2+2x-x^2=225-1\\
\\
\Rightarrow 2x=224\\
\\
\Rightarrow x=\frac{224}{2}\\
\\
\Rightarrow x=112\\
\\  \text{Hence the other leg of right triangle is 112 meters,}\\
\text{and hypotenus is 113 meters.}\\
\\
\text{Therefore, the perimeter of the right triangle}=15+112+113=240 \text{ meters}

Hence, Perimeter of the right triangle is: 240 meters

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