Geometry mixed checkpoint
Sample your tier's geometry skills and choose a focused review lesson.
What you will learn
- Select the appropriate Core or Extended attempt.
- Explain geometric reasons on paper before selecting an answer.
- Use missed first-attempt skills to plan a return.
Check a sample, then decide what to revisit
The Core attempt has nine questions covering shape properties, nets, scale, bearings, similar lengths, symmetry, angles, regular polygons and the two Core circle theorems. Extended adds four questions on area and volume scaling, 3D symmetry, further circle angles and chord distances. Changing the tier starts a fresh attempt.
Read the explanation after checking each response. At the end, the review plan links missed first-attempt skills to the relevant lessons. A correct option only demonstrates success on that sampled question; the checkpoint does not establish broad mastery. Construction drawings and the full range of geometric reasoning still need paper practice and human review.
Make the next visit useful
Choose one suggested lesson and redo its independent task without opening the worked solution. Write each geometric reason alongside the calculation. For drawings and nets, use the stated tools and check lengths, angles, fold edges and visible construction arcs against the success criteria.
This checkpoint is not saved as an exam grade and does not mark lessons complete. Use the existing saved review choice on a teaching lesson to plan a later return. Teacher review and a full cumulative assessment remain pending; the small multiple-choice sample cannot replace either.
Geometry checkpoint
Changing tier starts a fresh attempt. This practice check is not saved as a grade or used to mark lessons complete.
Question 1 of 9 · Core and Extended
A quadrilateral has four equal sides and a 70° angle. Which description fits?
Worked example
A similar solid's length factor is 2. Its original surface area is 18 cm² and volume is 30 cm³. Find the new measures.
Show the worked solution
- Surface area scales by 2² = 4, giving 18 × 4 = 72 cm².
- Volume scales by 2³ = 8, giving 30 × 8 = 240 cm³.
- Both rules require all corresponding lengths to share the same scale factor.
Answer 72 cm² and 240 cm³ (Extended).
Common mistakes
- Choosing an answer without a geometric reason.
- Treating a sample checkpoint as a full exam or saved grade.
- Claiming paper drawings were automatically checked.
What can you explain now?
What is the reverse bearing of 145°?
Compare with the explanation
325°
The direction back differs by 180°, so add 180 to the bearing below 180°.
After trying it yourself, choose your next review. This is your self-assessment.
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Original StudyForA teaching content · AI-assisted checks · Human teacher review pending.
Number contains 19 sequenced lessons; Algebra and graphs 21; Coordinate geometry 10; Geometry 15; Mensuration 13; Trigonometry 13; Transformations and vectors 11; Probability 7; Statistics 13. All 72 syllabus section entries now link to teaching and staged practice. Seven mixed checkpoints sample skills and suggest review lessons. Nine earlier overviews remain available. Full cumulative assessment and human teacher review remain pending. Written lesson practice, charts and constructions are self-checked, not automatically graded. Checkpoints do not save an exam grade or certify mastery.
Check the official syllabus 2025–2027 Open related practice and resources