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Geometry 15 Online
OpenStudy (anonymous):

The circumference of Circle F is 72 cm. What is the length of Arc DE (the minor arc)?

OpenStudy (anonymous):

OpenStudy (amistre64):

would you agree that 90 degree is 1/4 of a circle?

OpenStudy (anonymous):

Yes. 90 x 4 = 360.

OpenStudy (amistre64):

then since 72 relates to 360 72/4 relates to 360/4, right?

OpenStudy (anonymous):

Yep

OpenStudy (amistre64):

then i would go with an arcLength of 72/4 ;)

OpenStudy (anonymous):

18 cm then?

OpenStudy (amistre64):

sounds good to me

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