Why are the values for sine increasing when the angle increases from 0° to 90°? A. The hypotenuse is decreasing during that interval. B. The opposite side is increasing during that interval, while the hypotenuse is staying the same. C. The adjacent side is increasing during that interval, while the hypotenuse is staying the same. D. Similar triangles always have proportional sides.

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A: 2) Given:       Cosine of an obtuse angle              cosθ=-0.78                  θ=cos-1-0.78…

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Q: - Complete the table below. Trigonometric Ratio cosine e Definition adjacent hypotenuse hypotenuse…

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Q: 102. Find the radian measure of a central angle opposite an arcs in a circle of radius r. 2) r-8…

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A: Distance formula: Distance between two points (a,b) and (c,d) is given by : (d-b)2+(c-a)2

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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.