Homework Help: geometry

Posted by deion on Wednesday, January 5, 2011 at 7:13pm.

What is the area of a sector where n= the measure of the central angle, r=radius, and d=diameter. n=90 degrees, d=18cm

geometry - daniel, Thursday, January 6, 2011 at 10:21am
taibg tihygta tyq
geometry - Henry, Friday, January 7, 2011 at 6:16pm
Ac = 3.14*r^2 = 3.14 * 9^2=254.48cm^2 = Area of the circle.

A sector is a fraction of a circle.
As = (90/360)254.48,
As = (1/4)254.48 = 63.6cm^2.
geometry - Ariana, Friday, February 4, 2011 at 7:50pm
I NEED HELP ON MY mATH!!!!!

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