MA.7.GR.1.3 · Geometric Reasoning
Students explore the proportional relationship between the circumference and the diameter of a circle, which is exactly what π measures, and then apply the circumference formula. They work in both directions: finding the circumference from a radius or diameter, and finding the radius or diameter from a given circumference.
The FAST asks for circumference through the equation editor, sometimes exactly in terms of π and sometimes rounded, and the item states which. The most common error is using the radius where the formula calls for the diameter, which halves the answer.
These come straight from Algebro's 7th grade question bank, easiest first. Answer one, check it, then move to the next.
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Correct answer: C. 10 cm
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Select every answer that applies, then check.
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Correct answer: A, C, D (highlighted above)
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Correct answer: 10.5, 5.25
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Correct answer: 9
Pick one match in each row, then check.
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| m () | ||||
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| m () |
Showcase extra: the real practice and quiz players do not have this button.
Correct answer: shown by the green boxes above
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