Exploring the Area of Composite Figures

What is a composite figure?

• A shape made up of circles only

• A 3D object made from cubes

• A shape composed of multiple simple shapes

• A figure made up of triangles only

Which of the following is NOT a common shape used in composite figures?

• Rectangle

• Circle

• Ellipse

• Trapezoid

What is the first step in calculating the area of a composite figure?

• Calculate the area of each shape

• Divide the figure into smaller shapes

• Find the perimeter of the shapes

• Add the areas of all shapes

Why might you need to calculate the area of a composite figure?

• To determine how much paint is needed for a wall

• To measure the height of a building

• To find out how much carpet is needed for a room

• To calculate the volume of a pool

How do you find the area of a rectangle?

• 2 x (Length + Width)

• Length / Width

• Length x Width

• Length + Width

What is the area of a rectangle with a length of 8 cm and width of 5 cm?

• 13 cm²

• 40 cm²

• 15 cm²

• 3 cm²

What formula is used to calculate the area of a circle?

• 2πr

• 2r^2

• πd

• πr^2

What is the radius of a circle if its diameter is 5 cm?

• 7.5 cm

• 5 cm

• 10 cm

• 2.5 cm

When two shapes are stuck together, what should you do with their areas?

• Subtract them

• Divide them

• Add them

• Multiply them

What do you do if one shape is inside another in a composite figure?

• Divide the outer shape's area by the inner shape's area

• Multiply their areas

• Subtract the inner shape's area from the outer shape's area

• Add their areas