Answer
3.24 m.
Work Step by Step
By similar triangles, $\frac{h_{tree}}{h_{mirror}}=\frac{d_{tree}}{d_{mirror}}$.
$$h_{tree}= h_{mirror}\frac{d_{tree}}{d_{mirror}}$$
$$h_{tree}= 0.0400m\frac{28.0m+0.350m}{0.350m}=3.24m$$
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.