110 ft 1,5° h 25° Figure 15
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.
antenna on the top of a hill subtends an angle of 1.5 degree. If the angle of elevation to the
bottom of the antenna is 25 degree , find the height of the hill. (See Figure 15.)
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