Quiz · Trigonometry
Find the missing side, find the missing angle: Pythagoras and SOH CAH TOA put to work. Ladders, ramps, tree heights, boxes and coordinates, with diagrams for each triangle. Diagrams are not drawn to scale, so trust the numbers.
Angles and sides of triangles with SOH CAH TOA and Pythagoras, the waves of sine and cosine, and the sine and cosine rules.
Before you start
You have 30 seconds for each question. When time runs out, the question counts as wrong.
Your first choice is the one that counts. It is checked straight away, with an explanation where there is one.
At the end you see your score and can go back through every question and its answer.
XP scales with your score. Replays earn XP only when you beat your previous best.
From players
Play next
Mathematics · Trigonometry
Beyond the triangle: sine and cosine make waves that describe sound, light and tides. Read trig graphs, find periods and amplitudes, use exact values and solve problems with the sine rule, cosine rule and triangle area formula.
Mathematics · Trigonometry
Trigonometry links the angles of a right-angled triangle to the lengths of its sides. Learn sine, cosine and tangent with SOH CAH TOA, find the hypotenuse with Pythagoras, and memorise the exact values every student needs.