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Grade 7 · Geometry

Perimeter

76 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 semicircle has diameter 1010 cm. Its perimeter is made up of the curved arc and the straight diameter. Find the perimeter, in centimeters, in terms of π\pi.

  2. Standard

    A semicircle has diameter 2222 cm. Its perimeter is made up of the curved arc and the straight diameter. Find the perimeter, in centimeters, in terms of π\pi.

  3. Standard

    A semicircle has diameter 2020 cm. Its perimeter is made up of the curved arc and the straight diameter. Find the perimeter, in centimeters, in terms of π\pi.

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

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