The image is below please help

The shape has 90 degrees missing, as indicated by the image. We need to find the fraction of the shape that is present, and find the area of that.

360 - 90 = 270

270 / 360 = 3/4

Formula for the area of a circle: A = pi x r^2

The radius given is 2 units for this circle. We'll first find the area of the whole circle, then multiply that value by 3/4 to find the area of the shape.

A = pi x 2^2

A = 3.14 x 4

A = 12.56

12.56 x (3/4) = 9.42

A = 9.42 units^2

Hope this helps!! :)

b) the dogs need to shift their focus to human scent.