C.4.3—Areas and volumes

Calculate triangle and circle areas, circumferences, and surface areas and volumes of blocks, cylinders and spheres.

Use c.4.3—areas and volumes to connect the rule to the data and decision in the question.

This matters because c.4.3—areas and volumes determines what can be inferred or chosen; begin with the stated conditions and keep the conclusion tied to the evidence.

Example: apply c.4.3—areas and volumes to one small, clearly defined case, show the key step or comparison, and explain the result in words.

Boundary: C.4.3—Areas and volumes is not a universal recommendation. Check the syllabus scope, assumptions, units and the limits of the evidence before generalising.