Spruce height

How tall was spruce that was cut at an altitude of 8m above the ground and the top landed at a distance of 15m from the heel of the tree?

Correct answer:

x =  25 m

Step-by-step explanation:

$$\begin{gathered} a=8\text{ m } \\ b=15\text{ m } \\ c=\sqrt{a^2+b^2}=\sqrt{8^2+15^2}=17\text{ m } \\ x=a+c=8+17=25\text{ m} \end{gathered}$$

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