A right trlangle has side lengths 7, 24, and 25 as shown below. Use these lengths to find tan B, sin B, and cos B. tan B = B 25 7 sin B = 24 C cos B =

Q: Find cos 7pi . and Indicate the reference angle.

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Q: If sin 60° = 3 and cos B find B. Explain. %3D %3D

A: This question can be easily solved using trigonometric functions for standard angles

Q: Write cos ⁡ ( θ ) in terms of sin ⁡ ( θ ) if θ is an angle in quadrant II.

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Q: A 26-foot extension ladder leaning against a building makes a 78° angle with the ground. How far up…

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Q: Tim wants to determine the height, x, of a nearby tree. He stands 35 feet from the base of the tree.…

A: The top of the tree, Tim and the base of the tree form a right triangle. The tree measures  feet…

Q: A right triangle has side lengths d, e, and f as shown below. Use these lengths to find tanx, sin x,…

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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.