JHgabybark JHgabybark

03-04-2017
Mathematics

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If a circle has circumference 10 pi cm, then an arc with measure 90 degree has length 5 pi cm true or false

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wolf1728 wolf1728

05-04-2017

If circumference = 10 * PI
then a 90 degree central angle will "sweep out" one fourth of the circumference or 10 PI / 4 = 2.5 PI
So it is false.

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