Area Calculations in Composite Figures

What is the formula for calculating the area of a rectangle?

• Length + Width

• 2 x (Length + Width)

• Length x Width

• Length x Width x Height

How do you calculate the area of a triangle?

• Base x Height x 2

• 1/2 x Base x Height

• Base x Height

• Base + Height

In the example, what is the area of the rectangle?

• 42 square meters

• 21 square meters

• 60 square meters

• 81 square meters

What is the total area of the composite figure consisting of a rectangle and a triangle?

• 42 square meters

• 60 square meters

• 21 square meters

• 81 square meters

How do you find the shaded area in a composite figure with a rectangle and two smaller boxes?

• Multiply the areas of all shapes

• Subtract the area of the boxes from the rectangle

• Add the areas of all shapes

• Divide the area of the rectangle by the area of the boxes

What is the total area of the shaded region in the second example?

• 640 square feet

• 128 square feet

• 512 square feet

• 256 square feet

What is the formula for the area of a semicircle?

• Pi x Radius squared

• Pi x Diameter

• 1/2 x Pi x Radius squared

• 2 x Pi x Radius

If a semicircle has a diameter of 6, what is its radius?

• 12

• 6

• 3

• 1.5

What is the area of a semicircle with a radius of 3?

• 4.5 Pi

• 9 Pi

• 3 Pi

• 6 Pi

What is the combined area of two semicircles with radii 3 and 2.5?

• 5.5 Pi

• 6.25 Pi

• 7.625 Pi

• 8 Pi