How to find an angle of a right triangle with 3 sides - Quora

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What is the formula for finding the area of a right triangle when only the angles are known? - Quora

Use Sin, Cos & Tan to Solve Right Triangles in Trig & PreCalculus - [2-20-1]

How to prove that in a right triangle, dropping the height to the hypotenuse results in three pairs of similar triangles - Quora

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A right triangle has sides a = x, b = x + 3 and c = 2x − 3. Can you solve for any of the angle/s (except for the right angle)? - Quora

How Many Triangles Do You See? Test Yourself, Then Learn the Answer

If I know two side lengths of a triangle, as well as one angle, how do I find the other angle lengths? - Quora

Where do you cut a line of symmetry for a right angle triangle where you want both sides to be of the same area? - Quora