The ratios of the sides of a right triangle are called trigonometric ratios. Three common trigonometric ratios are the sine (sin), cosine (cos), and tangent (tan).

Can you find the length of a missing side of a right triangle? You most likely can: if you are given two side lengths you can use the Pythagorean Theorem to find the third one. But, what if you …

Sin, cos, and tan are trigonometric ratios that relate the angles and sides of right triangles. Sin is the ratio of the opposite side to the hypotenuse, cos is the ratio of the adjacent side to the …

Right triangle trigonometry problems are all about understanding the relationship between side lengths, angle measures, and trigonometric ratios in right triangles.

Not only are right triangles cool in their own right (pun intended), they are the basis of very important ideas in analytic geometry (the distance between two points in space) and …

Right triangle trigonometry: foundationsSo we can give you the right tools, let us know if you're a...

The ratios of the sides of a right triangle are called trigonometric ratios. Three common trigonometric ratios are the sine (sin), cosine (cos), and tangent (tan).

We abbreviate sine as "sin", cosine as "cos", and tangent as "tan". If we know the lengths of the sides of a right triangle, we can use these definitions to calculate the trigonometric ratios. Try it …

If what I'm saying is unfamiliar, I encourage you to review the right triangle trigonometry, and if the things I did about segment congruence and congruent triangles and similar triangles …

Practicing finding right triangle side lengths with the Pythagorean theorem, rewriting square root expressions, and visualizing right triangles in context helps us get ready to learn about right …