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Area of Composite Figures — Easy Worksheet 2
Grade 3 · MathSheets Name: ____________________ Date: __________
Find each area in square units. All corners are square corners. The same kind of figure comes in different questions.
How to solve
Split the figure into two rectangles with one straight line. Find the area of each rectangle (length × width), then add the two areas. Use the labeled sides to work out any side lengths you need.
Example
What is the area of the figure in square units?
Answer: 9
Warm-up
Not quite. The answer is
💡 Split it into two rectangles: 4 × 5 = 20 and 1 × 4 = 4. Add the two areas: 20 + 4 = 24 square units.
✓ Correct!
Not quite. The answer is
💡 Split it into two rectangles: 4 × 5 = 20 and 1 × 4 = 4. Add the two areas: 20 + 4 = 24 square units.
💡 How to solve: Area of Composite Figures
Split the figure into two rectangles with one straight line. Find the area of each rectangle (length × width), then add the two areas. Use the labeled sides to work out any side lengths you need.
Try a similar one
What is the area of the figure in square units?
✓ You've got it! Press Next to keep going. Not yet — the answer is . Read the steps above once more.
Not quite. The answer is
💡 Split it into two rectangles: 1 × 3 = 3 and 2 × 2 = 4. Add the two areas: 3 + 4 = 7 square units.
✓ Correct!
Not quite. The answer is
💡 Split it into two rectangles: 1 × 3 = 3 and 2 × 2 = 4. Add the two areas: 3 + 4 = 7 square units.
💡 How to solve: Area of Composite Figures
Split the figure into two rectangles with one straight line. Find the area of each rectangle (length × width), then add the two areas. Use the labeled sides to work out any side lengths you need.
Try a similar one
What is the area of the figure in square units?
✓ You've got it! Press Next to keep going. Not yet — the answer is . Read the steps above once more.
Not quite. The answer is
💡 Split it into two rectangles: 2 × 5 = 10 and 3 × 2 = 6. Add the two areas: 10 + 6 = 16 square units.
✓ Correct!
Not quite. The answer is
💡 Split it into two rectangles: 2 × 5 = 10 and 3 × 2 = 6. Add the two areas: 10 + 6 = 16 square units.
💡 How to solve: Area of Composite Figures
Split the figure into two rectangles with one straight line. Find the area of each rectangle (length × width), then add the two areas. Use the labeled sides to work out any side lengths you need.
Try a similar one
What is the area of the figure in square units?
✓ You've got it! Press Next to keep going. Not yet — the answer is . Read the steps above once more.
Think it through
Not quite. The answer is
💡 Add the two areas: 5 + 4 = 9 square units.
✓ Correct!
Not quite. The answer is
💡 Add the two areas: 5 + 4 = 9 square units.
💡 How to solve: Area of Composite Figures
Split the figure into two rectangles with one straight line. Find the area of each rectangle (length × width), then add the two areas. Use the labeled sides to work out any side lengths you need.
Try a similar one
What is the area of the figure in square units?
✓ You've got it! Press Next to keep going. Not yet — the answer is . Read the steps above once more.
Not quite. The answer is
💡 Take the cut-out corner away from the big rectangle: 12 − 2 = 10 square units.
✓ Correct!
Not quite. The answer is
💡 Take the cut-out corner away from the big rectangle: 12 − 2 = 10 square units.
💡 How to solve: Area of Composite Figures
Split the figure into two rectangles with one straight line. Find the area of each rectangle (length × width), then add the two areas. Use the labeled sides to work out any side lengths you need.
Try a similar one
What is the area of the figure in square units?
✓ You've got it! Press Next to keep going. Not yet — the answer is . Read the steps above once more.
Not quite. The answer is
💡 The long side going up is 4. The short side on the other side of the step is 3. The missing side is the difference: 4 − 3 = 1.
✓ Correct!
Not quite. The answer is
💡 The long side going up is 4. The short side on the other side of the step is 3. The missing side is the difference: 4 − 3 = 1.
💡 How to solve: Area of Composite Figures
Split the figure into two rectangles with one straight line. Find the area of each rectangle (length × width), then add the two areas. Use the labeled sides to work out any side lengths you need.
Try a similar one
What is the area of the figure in square units?
✓ You've got it! Press Next to keep going. Not yet — the answer is . Read the steps above once more.
Challenge
Not quite. The answer is
💡 The two areas add up to the whole, so subtract the one you know: 7 − 5 = 2 square units.
✓ Correct!
Not quite. The answer is
💡 The two areas add up to the whole, so subtract the one you know: 7 − 5 = 2 square units.
💡 How to solve: Area of Composite Figures
Split the figure into two rectangles with one straight line. Find the area of each rectangle (length × width), then add the two areas. Use the labeled sides to work out any side lengths you need.
Try a similar one
What is the area of the figure in square units?
✓ You've got it! Press Next to keep going. Not yet — the answer is . Read the steps above once more.
Not quite. The answer is
💡 Find each area: 3 × 4 = 12 and 1 × 1 = 1. Add the two areas: 12 + 1 = 13 square units.
✓ Correct!
Not quite. The answer is
💡 Find each area: 3 × 4 = 12 and 1 × 1 = 1. Add the two areas: 12 + 1 = 13 square units.
💡 How to solve: Area of Composite Figures
Split the figure into two rectangles with one straight line. Find the area of each rectangle (length × width), then add the two areas. Use the labeled sides to work out any side lengths you need.
Try a similar one
What is the area of the figure in square units?
✓ You've got it! Press Next to keep going. Not yet — the answer is . Read the steps above once more.
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Area of Composite Figures — Easy Worksheet 2
Find each area in square units. All corners are square corners. The same kind of figure comes in different questions.