Composite 3D Objects (Surface Area/Volume)
10 tutor-authored questions for this Ontario curriculum expectation, ordered easiest to hardest — every one with a full worked solution. Work through them free, no account needed.
Sample: the first question, solved
Find the volume of a rectangular prism (3cm×2cm×4cm) plus a cube (2cm×2cm×2cm) on top.
📘 Worked solution
✓24+8 = 32cm³.
And one from the hard end
Find the volume of a cylinder (radius=3cm, height=8cm) minus a conical hole (same radius, height=5cm).
Solution shown after you try it in practice mode.
Work through all 10, easiest to hardest
Your Winny Score tracks you as the questions ramp up. Stuck on one? A real Winny Math tutor will walk you through it — first lesson free.
Start practicing