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3 years ago

Help please!!!!!!!! I need help with this ASAP!

Mathematics

1 answer:

garri49 [273]3 years ago

3 0

9514 1404 393

Answer:

2.89 m

Step-by-step explanation:

The attached shows the figure drawn accurately. It also shows that the angle of the line of sight is 102° -90° = 12° below the horizontal. The sine relation is useful in this situation.

The side opposite the angle in the triangle of interest is the difference in building heights, 5.3 -4.7 = 0.6 m. So, the useful relation is ...

Sin = Opposite/Hypotenuse

sin(12°) = (0.6 m)/(PR)

PR = (0.6 m)/sin(12°) ≈ 2.886 m

PR ≈ 2.89 m

The distance to the subject is about 2.89 meters.

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