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Grade 9 · Geometry

3D shapes & volume

22 problems in this skill, each with a solver-verified answer key. Answers are checked the moment you submit — with a hint if you want one and a worked solution afterwards.

What the problems look like

A few statements from this skill. Answers, hints and worked solutions live in the practice session.

  1. Warm-up

    A net is folded to form a prism whose two parallel bases are polygons with 66 sides each. How many polygons (faces) does the net contain in total?

  2. Warm-up

    A net is folded to form a prism whose two parallel bases are polygons with 1212 sides each. How many polygons (faces) does the net contain in total?

  3. Warm-up

    A net is folded to form a prism whose two parallel bases are polygons with 1111 sides each. How many polygons (faces) does the net contain in total?

Problems shown under their original terms: Generated (template, solver-computed).

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See every Geometry skill for grade 9