Question

What is the missing leg length? If necessary round to the nearest 10 tenths

Answer 1

The value of a can be determined from the pythagoras theorem as,

`\begin{gathered} 9^2=a^2+7^2 \\ 81=a^2+49 \\ a^2=81-49 \\ a^2=32 \\ a=5.65\approx5.7\text{ m} \end{gathered}`

Thus, the missing leg length is 5.7 m to the nearest tenth.