Find the area of the shaded region

40.5 m^2

Step-by-step explanation:

Find the area of the white triangle and subtract it from the area of the square.

The square has a side of 9 m.

The triangle has base 9 m and height 9 m.

area of square = side^2 = 9 m * 9 m = 81 m^2

area of triangle = (1/2)(base)(height) = (1/2)(9 m)(9 m) = 40.5 m^2

area of shaded region = area of square - area of triangle

area of shaded region = 81 m^2 - 40.5 m^2

area of shaded region = 40.5 m^2

  the correct choice is marked

step-by-step explanation:

the first two graphs show multiple turning points. the last graphs matches the description in every detail.