At the farmer's market, there is a scale that measures the weight of fruit and vegetables. The needle is 16 cm long, and it rotated 68° when Danielle placed six oranges on it. How far did the needle travel as it rotated? How would I do this one?

Question

drummergirl3 · Answer

he needle is  the radius of a circle.
The distance it rotates is a portion of the circumference.
Since there are 360° in a circle, multiply this by 68/360.

The answer is then found as 16*2π*(68/360).
That comes out somewhere below 20cm.
Do it yourself in Excel to get the real answer.

Doesn't that give you 18.98918226 (which is really 19cm)?

anonymous · Answer

So multiply the radius by 68/360?

drummergirl3 · Answer

exactly

anonymous · Answer

thank you :D Thats all i needed

drummergirl3 · Answer

No Problem ;)