1. The problem involves Dylan using a clinometer to measure the height of a tree.
2. Dylan stands 6 m from the base of the tree and measures the angle of elevation using the clinometer.
3. The clinometer shows an angle of 42° from the vertical, which means the angle of elevation from the horizontal is $48^\circ$ because angles in a triangle sum to 180° and the right angle is 90°:
$$180^\circ - 42^\circ - 90^\circ = 48^\circ$$
4. The height of Dylan's eye above the ground is 1.6 m.
5. We model the situation as a right triangle where:
- The base is 6 m (distance from Dylan to the tree)
- The angle of elevation is $48^\circ$
- The vertical side from Dylan's eye to the top of the tree is unknown (let's call it $h$)
6. Using the tangent function, which relates opposite side to adjacent side in a right triangle:
$$\tan(\theta) = \frac{\text{opposite}}{\text{adjacent}}$$
Here, $\theta = 48^\circ$, opposite side is $h$, adjacent side is 6 m:
$$\tan(48^\circ) = \frac{h}{6}$$
7. Solve for $h$:
$$h = 6 \times \tan(48^\circ)$$
8. Calculate $\tan(48^\circ)$:
$$\tan(48^\circ) \approx 1.1106$$
9. Therefore:
$$h = 6 \times 1.1106 = 6.6636 \text{ m}$$
10. This $h$ is the height from Dylan's eye to the top of the tree. To find the total height of the tree, add Dylan's eye height:
$$\text{Total height} = h + 1.6 = 6.6636 + 1.6 = 8.2636 \text{ m}$$
11. Rounded to two decimal places, the height of the tree is approximately:
$$8.26 \text{ m}$$
Hence, the diagram and angle interpretation are correct, and the height calculation follows logically from the given data.
Tree Height 427Dab
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