Assuming that a 90° arc has an exact length of , find the length of the radius of the circle.

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15-02-2018
Mathematics

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Assuming that a 90° arc has an exact length of , find the length of the radius of the circle.

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sqdancefan sqdancefan · Answer 1 · 2018-02-19T19:00:43+01:00

sqdancefan sqdancefan

19-02-2018

If the exact length is s, you have
.. s = r*θ . . . . θ = π/2
.. r = s/θ
.. r = 2s/π

Fill in the exact length for "s" in the formula and compute to find the radius.

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