Hypotenuse, opposite, and adjacent (article) | Khan Academy
We use special words to describe the sides of right triangles. The hypotenuse of a right triangle is always the side opposite the right angle. It is the longest side in a right triangle. The other two …
Find base and height on a triangle (practice) | Khan Academy
Identify the height of a triangle as the segment perpendicular to the base and reaching the other vertex.
Solving for a side in right triangles with trigonometry
Learn how to use trig functions to find an unknown side length in a right triangle. We can use trig ratios to find unknown sides in right triangles.
Side ratios in right triangles as a function of the angles
The hypotenuse of a right triangle is always the side opposite the right angle. It is the longest side in a right triangle. The other two sides are called the opposite and adjacent sides. These sides …
Types of triangles review (article) | Khan Academy
Draw a triangle with vertices at points A, B, and C, and draw a line through vertex C that is parallel to side AB. This diagram forms three non-overlapping angles at vertex C.
Identify transformations (practice) | Khan Academy
What single transformation was applied to triangle A to get triangle B ? Choose 1 answer: A
Trigonometric ratios in right triangles (article) | Khan Academy
Course: High school geometry > Unit 5 Lesson 5: Introduction to the trigonometric ratios Triangle similarity & the trigonometric ratios Trigonometric ratios in right triangles Trigonometric ratios …
Worked example: Triangle angles (diagram) - Khan Academy
The angle measures in any triangle always add up to 180 degrees. By using this fact and looking at complementary (adding up to 90 degrees) and supplementary (adding up to 180 degrees) …
Right triangle trigonometry | Lesson (article) | Khan Academy
Right triangle trigonometry problems are all about understanding the relationship between side lengths, angle measures, and trigonometric ratios in right triangles.
Triangle missing side example (video) | Khan Academy
Dive into the world of triangles! Learn how to find a missing piece using just the area and height. Apply this knowledge to solve puzzles and explore the magic hidden in these three-sided …