Find the area of the figure.

For this case we have to:

Area of a rectangle

Where a and b are the sides of the rectangle

Area of a triangle:

Where b is the base and h is the height of the triangle.

So:

On the other hand:

Finally, the area of the shaded region is given by:

13

step-by-step explanation:

distance formula is d=√(x2-x1)^2   +   (y2-y1)^2

r(0,90)(x,y) . t(-5,0)

last option

step-by-step explanation:

∆def to ∆d"e"f"

- rotate 90 counterclockwise degrees

- then translated 5 to the left (x --> x - 5)

answer is the last option