Find the area of the shaded region. round your answer to the nearest tenth.
area: about m2

This picture is a square and inside the square we can see 4 piece of a circle.
The area of a  piece of a circle=1/4 (area of a circle with radius = 9 m/2=4.5 m)
Therefore:
the area of a 4 piece of a circle=area of a circle with radius=4.5 m).

Area of the shaded region=area of the square -area of a circle.

1) we compute the area of the square:
area of a square=side²

Data:
side=9 cm
Area of this square=(9 m)²=81 m².

2) we compute the area of a circle with 4.5 m of radius.

area of a circle=πr²
area of this circle=π(4.5 m)²=20.25π m²

3) we calculate the area of the shaded region:
area of the shaded region=area of the square - area of the circle
area of the shaded region=81 m²-20.25π m²≈17.38 m²

Area= about 17.38 m²