Please Help (Math)

One way to find this is to find  260/360^ths  of the area of the circle and add the area of the triangle.

 

Portion of the circle:   (260/360)·pi·8.35²  =  158.195

 

Triangle:  Area  =  ½·a·b·sin(C)  =  ½·8.35·8.35·sin(100)  =  34.332

 

Adding these two areas:  192.5