the radius of a circle is 7cm the angle of the sector is 68 how do you find the

Hi Alice,

You didn't finish the question but maybe I can help anyway. The angle of the sector is 68^{o} and the entire circle is 360^{o}. The sector is only a fraction of the circle, in fact it is $\frac{68}{360}$ of the circle. From the symmetry of the circle you can see that the area of the sector is $\frac{68}{360}$ of the area of the circle and the length of the arc is $\frac{68}{360}$ of the circumference of the circle.

I hope this helps,
Penny

Math Central is supported by the University of Regina and The Pacific Institute for the Mathematical Sciences.