Composite Area

What is a composite shape?

• A composite shape is any shape with curved sides.

• A composite shape is one simple shape.

• A composite shape is composed of, or made up of, two or more shapes.

What does it mean to "decompose" a shape?

• Decomposing a shape is breaking it down into smaller shapes.

• Decomposing a shape is adding several shapes together.

• Decomposing a shape means to include units.

What is the AREA of shape B?

(Pay close attention to the measurements for length and width!)

• 60 sq. m

• 19 sq. m

• 16 sq. m

• 240 sq. m

When decomposing a composite shape, you will get the same area no matter how you split up the shape.

• True

• False

How do you determine the height of triangle A?

• 10 - 6 = 4

• 15 - 7 = 8

• 1 + 3 = 4

Add the areas of shapes A, B, and C.

What is the total area of this composite shape?

• 34 square inches

• 56 square inches

• 78 square inches

• 84 square inches

To find the area of a shaded region, you must _________ the area of the region that is not shaded.

• add

• subtract

• multiply

• divide

What is the area of the rectangle?

• 28 square inches

• 32 square inches

• 56 square inches

• 84 square inches

How did you find the area of this composite shape?

• Decompose it into a triangle and rectangle. Find the area of both shapes and add them.

• Find the area of the triangle and rectangle, and then subtract.

What is the area of the smaller white rectangle?

• 6 sq. cm.

• 5 sq. cm.

• 12 sq. cm.

• 8 sq. cm.