Mathematics GCSE
Using proportion to find unknown lengths and angles
What Using proportion to find unknown lengths and angles means in Mathematics GCSE, as defined for AQA.
Definition of Using proportion to find unknown lengths and angles
Check what you remember
Read the wording for your board, then hide it and explain Using proportion to find unknown lengths and angles in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: AQA
Missing lengths follow from a proportion such as a/A = b/B, and substituting known values finds an unknown side or angle.
Topics that use Using proportion to find unknown lengths and angles
- Ratio, proportion and rates of change (AQA GCSE)
Related terms
- Algebraic rearrangement of compound-unit formulae
- Checking the reasonableness
- Chord versus tangent
- Comparing quantities of the same kind
- compound interest
- Compound Measure
- compound unit
- constant of proportionality
Using Using proportion to find unknown lengths and angles in the exam
Check the command word and mark scheme for your exact question. After comparing your explanation with the reference, use the term in an answer on the linked topic. This practice does not predict an exam mark.
Practise Mathematics questions
Create a free account to answer exam-style questions on this topic and get feedback on your answers.
Start free
All Mathematics GCSE termsA week of Premium from your first lesson · Then the free plan continues · No card, no charge