# Math/Trig

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Find the radius of a circle with a central angle of pi/7 and a length of the intercepted arc equal to 7.7 cm. Round your answer to the nearest tenth.

• Math/Trig -

check that.

• Math/Trig -

I do want to point out that math teachers don't understand units and place value. "Round your answer to the nearest tenth"...what? cm, meter.
For instance, if you do that math...
0.171569029m or .2 m

Physics and chemistry teacher would agree, the problem should have stated

Because the arc was measured to two significant digits (7.7cm), the answer could be nor more than two, or 17cm.

• Math/Trig -

it says to find the radius

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