Decomposing Into Rectangles

Jada said that she found the area of figure A by cutting it into 3 rectangles, finding their separate areas, and then adding those areas. Which strategy best describes what Jada did?

• decomposing and rearranging

• decomposing

• enclosing and subtracting

• counting grid squares

Select all the true statements about this shape (Hint: Select all means more than one)

• The area can be found by decomposing into rectangles

• The area cannot be found because there are too many measurements

• The area can be found by multiplying 60x30 and subtracting missing pieces

• The area can be found by adding all the side lengths together

Mai found the area of figure D by cutting the shape in half, moving the smaller triangles together, and making a new rectangle. Which strategy best describes what Mai did?

• decomposing

• enclosing and subtracting

• decomposing and rearranging

What is the area of figure C?

• 294
• 336
• 324
• 290

Find the area of the irregular figure.

• 200

• 152

• 48

• 248

Find the area of the shape above

• 65 sq cm

• 52 sq cm

• 67 sq cm

• 50 sq cm

What is the area of this shape?

• 117
• 120
• 108
• 100

Find the area.

• 126 ft²

• 39 ft²

• 156 ft²

• 80 ft²