Measuring: GCSE Maths Practice | Revision Workshop
Constructions and loci
Measuring
12 self-marking GCSE practice questions on Measuring, written specifically for AQA, Pearson, OCR across Foundation and Higher tier. Instant marking with full worked solutions on every question.
A few of the 12 questions, from easier to harder. Choose your exam board and tier to practise them, with every answer marked.
Question 11 markGrade 2-4
The diagram shows the reflex angle AOB. Use the protractor to measure the size of the reflex angle AOB.
Show the worked solution
Align the protractor's centre with the vertex O
What are the common mistakes in Measuring?
When a pupil makes one of these on Revision Workshop, the marking engine names the mistake and explains it, instead of just marking the answer wrong.
Measures the non-reflex angle when the reflex angle was required, or vice versa
Measured the non-reflex (smaller) angle AOB instead of the reflex angle, forgetting to read round the full circle or subtract from 360°.
Reads the wrong protractor scale and also fails to adjust for a reflex angle
Read the wrong (supplementary) scale for the non-reflex angle before subtracting from 360°, compounding a protractor-scale error into the reflex answer.
Reads the wrong scale on a protractor
Read the outer (or inner) scale of the protractor instead of the one starting at the baseline, giving the supplementary angle.
Quick answers about Measuring
How many Measuring practice questions are there?
There are 12 self-marking GCSE Maths questions on Measuring, written for AQA, Pearson, OCR across Foundation and Higher tier. Each one is marked instantly and has a full worked solution.
Do I need an account to practise Measuring?
No. You can start practising Measuring straight away without an account. A free account keeps your results across sessions, so you can see your progress on this topic over time.
and its baseline (
0°
line) with
OA
. Reading round the full circle to
OB
(the reflex side) gives
339°
. Check: the non-reflex angle
AOB
measures
21°
, and
360°−21°=339°
.
Question 21 markGrade 3-4
Use the protractor to measure the size of angle AOB.
Show the worked solution
Align the protractor's centre with the vertex O and its baseline (0° line) with OA. Read off the scale where OB crosses it: 55°.
Question 31 markGrade 3-4
Use the ruler to measure the length of line PQ, given the diagram is drawn to a scale of 1cm=20 pixels.