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Sagot :
SOLUTION
From the question
The given triangle is a right angle hence Pythagorean theorem will be applied
The hypotenuse is given to be 18 cm
And one of the leg of the triangle is 13 cm
let the length of the other leg be x
Then using Pythagorean theorem, it follows:
[tex]x^2+13^2=18^2[/tex]Solve the equation for x
[tex]\begin{gathered} x^2+169=324 \\ x^2=324-169 \\ x^2=155 \\ x=\sqrt{155} \\ x=12.45 \end{gathered}[/tex]Therefore the length of the third side of the right triangle is 12.45 cm
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