PLS HELP IF U CAN 6TH GARDE MATH TEST GRADE

You are assembling pieces of an iron gate to complete a fence. the finished gate will look like the one below. in order to assemble the gate it is important to under how the pieces are related. part 1: how are pies 1 and 2 in the archway related? part 2: how are the rectangular sections 5 and 6 in the center of the gate related to each other?

The circumference of a circle is 5 pi cm. what is the area of the circle?

How much dextrose 70% must be mixed with dextrose 5% to prepare 1,000 ml of dextrose 20%?