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Grade 8 · Geometry

Perimeter

96 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. Standard

    A circle has circumference 10π10\pi cm. Find its area, in terms of π\pi, in square centimeters.

  2. Standard

    A circle has circumference 8π8\pi cm. Find its area, in terms of π\pi, in square centimeters.

  3. Standard

    A circle has circumference 14π14\pi cm. Find its area, in terms of π\pi, in square centimeters.

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

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See every Geometry skill for grade 8