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Area of Complex Figures Worksheet

Calculate the area of various complex geometric figures by decomposing them into simpler shapes. Includes composite figures, shaded regions, and real-world applications.

Grade 9 Math GeometryArea of Complex Figures
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Includes

3 CustomMultiple ChoiceFill in the BlanksShort Answer

Standards

CCSS.MATH.CONTENT.HSG.GMD.A.3CCSS.MATH.CONTENT.HSG.GPE.B.7

Topics

geometryareacomplex figurescomposite shapesgrade 9
8 sections · Free to use · Printable
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Area of Complex Figures

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Read each question carefully and calculate the area of the complex figures. Show all your work.

1. Find the area of the figure below, which consists of a rectangle and a semicircle. Use π ≈ 3.14.

12 cm8 cm

Show your work:

Area:  

2. Calculate the area of the shaded region. The outer rectangle has dimensions 10 ft by 7 ft, and the inner square has a side length of 4 ft.

10 ft7 ft4 ft

Show your work:

Area of shaded region:  

3. A floor plan is shown below. All angles are right angles. Find the total area of the floor.

8 m6 m11 m5 m

Show your work:

Total Area:  

4. Which of the following formulas would you use to find the area of a figure composed of a triangle and a rectangle?

a

A = (l × w) + (0.5 × b × h)

b

A = (l + w) × (b + h)

c

A = (l × w) - (0.5 × b × h)

d

A = (2l + 2w) + (b + h + s)

5. To find the area of a complex figure, you can often   it into simpler geometric shapes like rectangles, triangles, and circles.

6. The area of a figure is the amount of   it covers.

7. Describe a real-world scenario where you would need to calculate the area of a complex figure. Explain why it's a complex figure and how you would approach finding its area.