What is 1 plus 1 2+2 sara has this much how can she divide it to her 1 friend and her?

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.

The midpoints of the sides of the large square are joined to form a smaller square. what is the area of the smaller square

With number 11 ( show how you got the answer)