A class is having their picture taken. The photographer positions himself 21 feet from the center of the row of students. When the photographer looks at the last student at either end of the row, the photographer must turn 45° from the center in either direction. Which is the best estimate of the length of the row of students?
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.
A class is having their picture taken. The photographer positions himself 21 feet from the center of the row of students. When the photographer looks at the last student at either end of the row, the photographer must turn 45° from the center in either direction. Which is the best estimate of the length of the row of students?
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