👉 Learn all about the trigonometry of right triangles. A right triangle is a triangle that has 90 degrees as one of its ...

Learn all about the trigonometry of right triangles. A right triangle is a triangle that has 90 degrees as one of its angles.

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.

You’re standing at the edge of a cliff, phone in hand, trying to measure the distance to the opposite side – no tape measure, no drone, just your brain. Now what? Trigonometry just became your ...