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.
Height of a Rocket A rocket fired straight up is tracked by an observer on
the ground 1mi away.
(a) Show that when the angle of elevation is θ,the height of the rocket (in ft) is h = 5280 tan θ.
(b) Complete the table to find the height of the rocket at the given angles of elevation.
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