👉 Learn about the special right triangles. A special right triangle is a right triangle having angles of 30, 60, 90, or 45, ...

👉 Learn how to evaluate the six trigonometric functions given a right triangle. A right triangle is a triangle with 90 ...

Ancient Indian mathematician Baudhayana was the first person to formulate a theorem on right-angled triangles that in its modern form came to be associated with Greek mathematician Pythagoras, a newly ...

Being able to identify which formula to use, sine or cosine, and when, is necessary to answer questions on this topic successfully. Check you are confident in how to use the sine and cosine rules.