Brainlag Plus

Geometry problems

GCSE Maths, Exam problems, 30 minutes

Areas and volumes with a cost or a time at the end, Pythagoras and trigonometry in two steps, polygons, similar solids, sectors and the sine and cosine rules.

One result feeds the next

Many geometry problems are two smaller questions joined together. Label what each step finds.

right angle at B, AB = 6 cm, BC = 8 cm: AC² = 6² + 8² = 100, so AC = 10 cm
in triangle ACD, angle CAD = 35° and the right angle is at C
CD is opposite 35° and AC is adjacent: CD = 10 × tan 35° = 7.00 cm

Keep the unrounded AC on your calculator for the second step.

The rest of this lesson and its 11 practice questions are in Plus.

Screen 1 of 3, free to read.

11 exam-style questions, marked as you go, each with a worked solution
Anything you get wrong is saved to your flashcards

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