Determine the area of a circle with a diameter of .

Find the area of a circle with a radius of .

Determine the area of a triangle with a base of 6, and a height of .

Give the area of to the nearest whole square unit, where:

Determine the side of a square with an area of .

Determine the area of a rectangle if the length is and the height is .

Determine the area of a circle with a radius of .

In the provided diagram, hexagon is regular; and are the midpoints of their respective sides. The perimeter of the hexagon is ; what is the area of Quadrilateral ?

Find the area of a triangle with a base length of and a height of .

Note: Figure NOT drawn to scale.

Refer to the above diagram. , , and and are right angles. What percent of is colored red?