What is the formula for figuring out the area of a circle?

What is 1/2 x (6 x 4)+3 + 2 show your work

Graph g(x)=2cosx . use 3.14 for π . use the sine tool to graph the function. graph the function by plotting two points. the first point must be on the midline and closest to the origin. the second point must be a maximum or minimum value on the graph closest to the first point.

Measure of angles 31 (x+4) (3x+9) me