Area of Composite Shapes

How can you decompose a composite shape?

• By breaking it down into simpler shapes whose areas can be easily calculated.

• By adding more complex shapes to it.

• By changing its color to distinguish different parts.

• By measuring its perimeter only.

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

• Area = length × width.

• Area = length + width.

• Area = length - width.

• Area = length ÷ width.

How do you find the area of a shaded region in a composite shape?

• Add the area of the unshaded part to the total area of the composite shape.

• Multiply the length and width of the composite shape.

• Subtract the area of the unshaded part from the total area of the composite shape.

• Divide the total area of the composite shape by two.

How do you calculate the area of a triangle?

• Area = base × height

• Area = 1/2 × base × height

• Area = base + height

• Area = base × height / 2

What units are used to measure area?

• cm

• m

• square units (e.g., cm², m²)

• liters

What is the relationship between the base and height in calculating area?

• The base and height are parallel to each other.

• The base and height are perpendicular to each other and are used in the area formulas for triangles and rectangles.

• The base can be any length while the height must always be zero.

• The base and height are only relevant for circles.

What is a composite shape?

• A shape made up of one simple shape.

• A shape made up of two or more simple shapes.

• A shape that cannot be divided into smaller shapes.

• A shape that is only found in geometry.

What is the area of a parallelogram?

• Area = base × height.

• Area = 2 × base × height.

• Area = base + height.

• Area = base - height.

How do you calculate the area of a trapezoid?

• Area = 1/2 × (base1 + base2) × height.

• Area = base × height

• Area = (base1 + base2) × height

• Area = 1/2 × base × height

What is the area of a square?

• Area = side × side

• Area = 4 × side

• Area = side + side

• Area = side ÷ side