Trigonometric Ratios: Sine - Concept

Concept Concept (1)

Right triangles have ratios to represent the angles formed by the hypotenuse and its legs. Sine ratios, along with cosine and tangent ratios, are ratios of the lengths of two sides of the triangle. Sine ratios in particular are the ratios of the length of the side opposite the angle they represent over the hypotenuse. Sine ratios are useful in trigonometry when dealing with triangles and circles.

Sample Sample Problems (2)

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Trigonometric Ratios: Sine - Problem 1
Problem 1
How to find the sine of two angles in a right triangle given two side lengths.
Trigonometric Ratios: Sine - Problem 2
Problem 2
How to find the length of a base in an isosceles triangle given the vertex angle and a leg length.
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