Unit 4: Triangles - Khan Academy
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!
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Learn about the properties and applications of right triangles and trigonometry with Khan Academy's comprehensive unit.
Solving for a side with the law of cosines - Khan Academy
Learn how to use the law of cosines to find the missing side length of a triangle when given two side lengths and the contained angle measure.
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Learn the parallelogram rule for vector addition with Khan Academy's interactive lessons and exercises.
Triangle side lengths & the Pythagorean theorem | Khan Academy
Triangle side lengths & the Pythagorean theorem: Unit test Our mission is to provide a free, world-class education to anyone, anywhere. Khan Academy is a 501(c)(3) nonprofit organization.
Trig ratios of special triangles (article) | Khan Academy
Learn to find the sine, cosine, and tangent of 45-45-90 triangles and also 30-60-90 triangles.
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Learn how to use trig functions to find an unknown side length in a right triangle.
Intro to 30-60-90 Triangles | Khan Academy
A few more 45-45-90 examples and an introduction to 30-60-90 triangles. If you're seeing this message, it means we're having trouble loading external resources on our website. If you're behind a web filter, please make sure that the domains *.kastatic.org and …
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In translations, we slide a shape around on a grid. We use the letter "T" to represent translations. We move every point of the shape a certain distance left or right, and up or down, to create a new shape that's the same size and shape as the original. We call the new shape the image.