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Mathematics 7 Online
OpenStudy (anonymous):

In a circle of radius 10 cm, a sector has an area of 40π sq cm. What is the degree measure of the arc of the sector?

OpenStudy (mertsj):

If the radius of the circle is 10, the area is 100 pi. The sector is 40 pi so the sector is 4/10 of the entire circle. Would you agree?

OpenStudy (mertsj):

There are 360 degrees in an entire circle so in 4/10 of a circle there are 4/10 X 360 or 144 degrees.

OpenStudy (anonymous):

thanks ur really good can u help me with my next one plz

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