A circular track has a circumference of 1/4 mile. What is the radius?

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asked Feb 3, 2019 209k views

1 Answer

Niki Yoshiuchi · Answer 1 · 2019-02-09T02:20:28+0000

The formula for circumference is
$C = 2 \pi r$ . We know the circumference and therefore we can plug that into the formula and solve for the radius.

$(1)/(4) = 2 \pi r$

Lets divide by 2 first.

$(1)/(8)= \pi r$

Next, lets divide by pi.

$(1)/(8 \pi)= r$
Thus the answer is
$(1)/(8 \pi)$ of a mile, which is approximately
(1)/(25.13)

of a mile.

A circular track has a circumference of 1/4 mile. What is the radius?

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