Solve an angle relation

A long pair of sides does not make a bigger angle, and the drawing is not there to be measured - the sum is what settles it. The wrong answers on this skill are built out of that, not out of random numbers, so it is worth naming out loud before your child meets it under time pressure.

Point at the next move rather than explaining the whole rule. Add up the angles that are already marked, then take that total away from 180° - the angles inside a triangle always add up to 180°.

The skill map draws the line here: One relation or one short chain. A question past that line is testing a different named maths skill, which is worth knowing before you spend a week practising the wrong one.

The geometry strand holds 15 skills that are tested together, and the pages next to solve an angle relation are track cube faces from a net, translate a coordinate and classify an angle. Each has its own exercise and its own link, and none of them needs an account.

Use Angle Chaser, embedded on this page. It is the exercise the skill map attaches to solve an angle relation, it runs in the browser with no account to make, nothing is scored, and nothing a child does here is recorded or sent anywhere. It also has its own link, so you can send it to a child without sending them anywhere else first.