Trigonometric terms are explained and examples are used to show how to find unknown angles and sides for right-angled triangles. Use as an introduction or recap to lessons on trigonometry.

With all due respect to Pythagoras, newly uncovered evidence suggests that his famous theorem, used to calculate the lengths of each side of a right triangle, might be 1,000 years older than him.

Mort aux triangles ... feeling nostalgically trig curious. It’s hardly a textbook, but a teacher could easily triangulate numerous fascinating and fun lesson plans from this edifying ...

Trigonometric terms are explained and examples are used to show how to find unknown angles and sides for right-angled triangles. Use as an introduction or recap to lessons on trigonometry.