Question

A hole the size of a photograph is cut from a red piece of paper to use in a picture frame.

What is the area of the piece of red paper after the hole for the photograph has been cut?

Answer 1

47 is the right answer! Have an cool day!

Answer 2

By rotating the picture counterclockwise, it is clear that it is a square.

Calculate the length of one side of the picture by using coordinates (1, -3) and (2,1).
a = [(2-1)^2 + (1+3)^2]^0.5 = (1 + 8)^0.5 = 3
The area of the picture is 3^2 = 9.

Calculate the area of the red paper.
Area = 8*8 = 64

Calculate the area of the red paper after the photograph has been cut.
Area = 64 - 9 = 55

Answer: 55