Find the area of a sector of a circle of radius 3cm formed by an angle of 60 degrees. Round answer to two decimal places.
Follow Math Help Forum on Facebook and Google+
the area of a sector is 1/2 *r^2* a in radians.
pi radians=180 deagrees -> pi/3 rad=60 degrees.
To find the area of a sector of a circle:
Area of a circle is:
If you want to do it using radians like Tom1234 suggested:
Here's how you convert from radians to degrees and vice versa:
View Tag Cloud