Question

Find the length of the third side. If necessary, round to the nearest tenth. 12 5 x=what is the missing number x?

Answer 1

Step 1

Longest side is the hypotanuse = x

opposite = 5

Adjacent = 12

Apply pythagorus theorem

`\begin{gathered} \text{Opposite}^2+Adjacent^2=Hypotanuse^2 \\ 5^2+12^2=x^2 \\ \\ 25+144=x^2 \\ x^2\text{ = 169} \\ x\text{ = }\sqrt[\square]{169} \\ x\text{ = 13} \end{gathered}`