Simple Area of Composite Figures

In a composite figure, what is the purpose of subdividing the figure into known shapes?

• To simplify calculations

• To change the shape of the figure

• To increase the area of the figure

• To decrease the perimeter of the figure

What types of plane figures can be used to subdivide a composite figure?

• Rectangles, circles, pentagons, trapezoids, hexagons, octagons

• Circles, ovals, hexagons, octagons, squares, triangles

• Triangles, rectangles, squares, trapezoids, parallelograms, circles, and semicircles

• Triangles, squares, circles, ovals, parallelograms

What three shapes make up the composite figure? (select all that apply)

• Trapezoid

• Rectangle

• Triangle

• Circle

• Semi-circle

How could you find the area of the shaded region?

• By adding the area of the small rectangle to the large rectangle

• By subtracting the area of the small rectangle from the large rectangle

• By only finding the area of the large rectangle

• By only finding the area of the small rectangle

Area is measured in

• units²

• units³

• units

What is one way to find the area of a composite figure?

• Divide the total area by the number of shapes in the composite figure.

• Break it down into simpler shapes and calculate the area of each shape, then add up the areas of all the shapes.

• Multiply the length and width of each shape and add them up.

• Find the perimeter of each shape and add them up.

What is the area of the shaded region?

• 20 sq cm

• 4 sq cm

• 30 sq cm

• 24 sq cm

Find the area of the figure shown.

• 34 units²

• 960 units²

• 220 units²

• 480 units²

Which number represents the height?

• 12

• 13

• 15

• 14

A figure that is made up of two or more simpler figures, such as triangles and quadrilaterals.

• polygon

• composite figure

• triangle

• regular polygon