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.

A guide to right triangle trigonometry on the digital SAT

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You probably like triangles. You think they are useful. They show up a lot. What you'll see in this topic is that they are far more magical and mystical than you ever imagined!

Learn shortcut ratios for the side lengths of two common right triangles: 45°-45°-90° and 30°-60°-90° triangles. The ratios come straight from the Pythagorean theorem.

Learn how to find the sine, cosine, and tangent of angles in right triangles. The ratios of the sides of a right triangle are called trigonometric ratios. Three common trigonometric ratios are the …

Course: High school geometry > Unit 5 Lesson 9: Modeling with right triangles Right triangle word problem Angles of elevation and depression Right triangle trigonometry word problems Right …

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 …

Relate angles and side lengths using side length ratios in similar 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 …