Which formula represents how to find the area of a circle

You have 138.72 in your saving account u take out 45.23 and 18.00 you deposit 75.85 into your account

Which of the following can be used to explain a statement in a geometric proof?

The point of intersection of the diagonals of a rectangle is 4 cm further away from the smaller side then from the larger side of the rectangle. the perimeter of the rectangle is equal to 56 cm. find the lengths of the sides of the rectangle. 16 points answer quick