OpenStudy (anonymous):

What is the area of a sector with radius 10" and measure of arc equal to 45°?

5 years ago
OpenStudy (campbell_st):

what fraction of a circle is an angle of 45..? the Sector Area = fraction x pi x r^2

5 years ago
OpenStudy (anonymous):

1/8 times pi times 100??

5 years ago
OpenStudy (campbell_st):

thats it.. well do... to get the fraction just use 45/360 the multiply by the area of the circle

5 years ago
OpenStudy (anonymous):

So do what next?

5 years ago
OpenStudy (campbell_st):

just multiply it out... the answer should be just less that 40 in^2

5 years ago
OpenStudy (anonymous):

25/2 pi?

5 years ago
OpenStudy (campbell_st):

you thats the exact answer..

5 years ago