Trigonometry
Use Pythagoras' theorem and SOH-CAH-TOA to find the missing side!
Which topics?
Which ratios? (for trigonometry questions)
Which angles? (for trigonometry questions)
How many questions?
Time per question?
Trigonometry answers are rounded to 1 decimal place.
Pick at least one topic — and if Trigonometry is on, at least one ratio and one angle.
Find the missing side
Game over!
0 / 0
Runs entirely in your browser — no data is sent anywhere.
About this trigonometry game
This free trigonometry game gives GCSE-level students practice finding the missing side of a right-angled triangle using Pythagoras' theorem and SOH-CAH-TOA. Each question presents a triangle with two known values — work out whether to use Pythagoras or sin, cos or tan, then calculate the missing side. It's a quick way to build speed and confidence ahead of exams.