Math Practice Problems - Perimeter and Area of Composite Figures

Perimeter and Area of Composite Figures - Sample Math Practice Problems

The math problems below can be generated by MathScore.com, a math practice program for schools and individual families. References to complexity and mode refer to the overall difficulty of the problems as they appear in the main program. In the main program, all problems are automatically graded and the difficulty adapts dynamically based on performance. Answers to these sample questions appear at the bottom of the page. This page does not grade your responses.

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Complexity=2, Mode=align-grid

Find the perimeter and area of each figure. Each unit is 1 cm. Label your answers in "cm".
For example, "6 cm" and "12 sq cm"

1.		perimeter = area =
2.		perimeter = area =

Complexity=3, Mode=align-grid

Find the perimeter and area of each figure. Each unit is 1 cm. Label your answers in "cm".
For example, "6 cm" and "12 sq cm"

1.		perimeter = area =
2.		perimeter = area =

Complexity=2, Mode=jagged-grid

Find the perimeter and area of each figure. Each unit is 1 cm. Label your answers in "cm".
For example, "6 cm" and "12 sq cm"

1.		perimeter = area =
2.		perimeter = area =

Complexity=3, Mode=jagged-grid

Find the perimeter and area of each figure. Each unit is 1 cm. Label your answers in "cm".
For example, "6 cm" and "12 sq cm"

1.		perimeter = area =
2.		perimeter = area =

Complexity=2, Mode=align

Find the perimeter and area of each figure. Use labels.
All figures are made of rectangles.

1.		perimeter = area =
2.		perimeter = area =

Complexity=3, Mode=align

Find the perimeter and area of each figure. Use labels.
All figures are made of rectangles.

1.		perimeter = area =
2.		perimeter = area =

Answers

Complexity=2, Mode=align-grid

Find the perimeter and area of each figure. Each unit is 1 cm. Label your answers in "cm".
For example, "6 cm" and "12 sq cm"

#	Problem	Correct Answer	Your Answer
1		perimeter = area =
Solution To get the perimeter, add up the lengths of all the sides. Perimeter = 1 cm + 2 cm + 1 cm + 4 cm + 2 cm + 2 cm = 12 cm Looking at this figure, you can see that the figure is made up of rectangles. To get the figure's area, add up the areas of the smaller rectangles. Area = (1 cm * 2 cm) + (1 cm * 4 cm) = 6 sq cm

#	Problem	Correct Answer	Your Answer
2		perimeter = area =
Solution To get the perimeter, add up the lengths of all the sides. Perimeter = 3 cm + 1 cm + 2 cm + 5 cm + 5 cm + 4 cm = 20 cm Looking at this figure, you can see that the figure is made up of rectangles. To get the figure's area, add up the areas of the smaller rectangles. Area = (3 cm * 4 cm) + (2 cm * 5 cm) = 22 sq cm

Complexity=3, Mode=align-grid

Find the perimeter and area of each figure. Each unit is 1 cm. Label your answers in "cm".
For example, "6 cm" and "12 sq cm"

#	Problem	Correct Answer	Your Answer
1		perimeter = area =
Solution To get the perimeter, add up the lengths of all the sides. Perimeter = 1 cm + 2 cm + 2 cm + 2 cm + 2 cm + 3 cm + 5 cm + 3 cm = 20 cm Looking at this figure, you can see that the figure is made up of rectangles. To get the figure's area, add up the areas of the smaller rectangles. Area = (1 cm * 3 cm) + (2 cm * 5 cm) + (2 cm * 3 cm) = 19 sq cm

#	Problem	Correct Answer	Your Answer
2		perimeter = area =
Solution To get the perimeter, add up the lengths of all the sides. Perimeter = 3 cm + 1 cm + 1 cm + 1 cm + 3 cm + 3 cm + 7 cm + 3 cm = 22 cm Looking at this figure, you can see that the figure is made up of rectangles. To get the figure's area, add up the areas of the smaller rectangles. Area = (3 cm * 3 cm) + (1 cm * 2 cm) + (3 cm * 3 cm) = 20 sq cm

Complexity=2, Mode=jagged-grid

Find the perimeter and area of each figure. Each unit is 1 cm. Label your answers in "cm".
For example, "6 cm" and "12 sq cm"

#	Problem	Correct Answer	Your Answer
1		perimeter = area =
Solution To get the perimeter, add up the lengths of all the sides. Perimeter = 3 cm + 3 cm + 1 cm + 4 cm + 1 cm + 1 cm + 3 cm + 2 cm = 18 cm Looking at this figure, you can see that the figure is made up of rectangles. To get the figure's area, add up the areas of the smaller rectangles. Area = (3 cm * 2 cm) + (1 cm * 4 cm) = 10 sq cm

#	Problem	Correct Answer	Your Answer
2		perimeter = area =
Solution To get the perimeter, add up the lengths of all the sides. Perimeter = 2 cm + 2 cm + 1 cm + 3 cm + 1 cm + 1 cm + 2 cm + 2 cm = 14 cm Looking at this figure, you can see that the figure is made up of rectangles. To get the figure's area, add up the areas of the smaller rectangles. Area = (2 cm * 2 cm) + (1 cm * 3 cm) = 7 sq cm

Complexity=3, Mode=jagged-grid

Find the perimeter and area of each figure. Each unit is 1 cm. Label your answers in "cm".
For example, "6 cm" and "12 sq cm"

#	Problem	Correct Answer	Your Answer
1		perimeter = area =
Solution To get the perimeter, add up the lengths of all the sides. Perimeter = 1 cm + 3 cm + 2 cm + 2 cm + 1 cm + 3 cm + 1 cm + 3 cm + 2 cm + 2 cm + 1 cm + 3 cm = 24 cm Looking at this figure, you can see that the figure is made up of rectangles. To get the figure's area, add up the areas of the smaller rectangles. Area = (1 cm * 3 cm) + (2 cm * 4 cm) + (1 cm * 3 cm) = 14 sq cm

#	Problem	Correct Answer	Your Answer
2		perimeter = area =
Solution To get the perimeter, add up the lengths of all the sides. Perimeter = 1 cm + 2 cm + 1 cm + 1 cm + 1 cm + 3 cm + 1 cm + 1 cm + 1 cm + 1 cm + 1 cm + 2 cm = 16 cm Looking at this figure, you can see that the figure is made up of rectangles. To get the figure's area, add up the areas of the smaller rectangles. Area = (1 cm * 2 cm) + (1 cm * 3 cm) + (1 cm * 3 cm) = 8 sq cm

Complexity=2, Mode=align

Find the perimeter and area of each figure. Use labels.
All figures are made of rectangles.

#	Problem	Correct Answer	Your Answer
1		perimeter = area =
Solution First calculate the lengths of the missing sides. To get the perimeter, add up the lengths of all the sides. Perimeter = 1 in + 1 in + 2 in + 2 in + 3 in + 3 in = 12 in Looking at this figure, you can see that the figure is made up of rectangles. To get the figure's area, add up the areas of the smaller rectangles. Area = (1 in * 3 in) + (2 in * 2 in) = 7 sq in

#	Problem	Correct Answer	Your Answer
2		perimeter = area =
Solution First calculate the lengths of the missing sides. To get the perimeter, add up the lengths of all the sides. Perimeter = 1 in + 3 in + 1 in + 5 in + 2 in + 2 in = 14 in Looking at this figure, you can see that the figure is made up of rectangles. To get the figure's area, add up the areas of the smaller rectangles. Area = (1 in * 2 in) + (1 in * 5 in) = 7 sq in

Complexity=3, Mode=align

Find the perimeter and area of each figure. Use labels.
All figures are made of rectangles.

#	Problem	Correct Answer	Your Answer
1		perimeter = area =
Solution First calculate the lengths of the missing sides. To get the perimeter, add up the lengths of all the sides. Perimeter = 3 m + 1 m + 3 m + 1 m + 2 m + 4 m + 8 m + 4 m = 26 m Looking at this figure, you can see that the figure is made up of rectangles. To get the figure's area, add up the areas of the smaller rectangles. Area = (3 m * 4 m) + (3 m * 3 m) + (2 m * 4 m) = 29 sq m

#	Problem	Correct Answer	Your Answer
2		perimeter = area =
Solution First calculate the lengths of the missing sides. To get the perimeter, add up the lengths of all the sides. Perimeter = 2 ft + 2 ft + 2 ft + 1 ft + 3 ft + 3 ft + 7 ft + 2 ft = 22 ft Looking at this figure, you can see that the figure is made up of rectangles. To get the figure's area, add up the areas of the smaller rectangles. Area = (2 ft * 2 ft) + (2 ft * 4 ft) + (3 ft * 3 ft) = 21 sq ft

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