. From the top of a lighthouse 210 feet high, the angle of depression of a boat is 27°. Find the distance from the boat to the foot of the lighthouse. The lighthouse was built at sea level. Round to the nearest tenth of a foot. Be sure to include units.
Ratios
A ratio is a comparison between two numbers of the same kind. It represents how many times one number contains another. It also represents how small or large one number is compared to the other.
Trigonometric Ratios
Trigonometric ratios give values of trigonometric functions. It always deals with triangles that have one angle measuring 90 degrees. These triangles are right-angled. We take the ratio of sides of these triangles.
3. From the top of a lighthouse 210 feet high, the
distance from the boat to the foot of the lighthouse. The lighthouse was built at sea level.
Round to the nearest tenth of a foot. Be sure to include units.
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