Find Area by Decomposing

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

Tags

CCSS.3.MD.C.7D

Select the statement that is true about all three figures

• The area of the first figure is greater than the others

• The areas are all equal

• The area of the middle figure is the smallest of the three

• We don't have enough information to compare the areas

Tags

CCSS.2.G.A.1

Select all strategies that could be used to find the area of this shape. (Hint: Select all means more than one)

• The area can be found by counting the number of squares that touch the edge of the shape

• The area can be found by adding 5x2, 4x2, and 2x2

• The area of the shape is 22 square units

• The area can be found by counting the number of grid squares inside the shape

Find the area of the composite figure.

___ square feet

Tags

CCSS.3.MD.C.7D

Find the area of the composite figure.

• 19 square cm

• 30 square cm

• 29 square cm

• 45 square cm

Tags

CCSS.3.MD.C.7D

Find the area of this composite figure

• 77 m²

• 78 m²

• 79 m²

• 80 m²

Tags

CCSS.3.MD.C.7D

Find the area of the composite figure.

___ square centimeters

Tags

CCSS.3.MD.C.7D

Juan drew a diagram of his garden.

What is the area of his garden?

• 30 ft²

• 37 ft²

• 45 ft²

• 54 ft²

Tags

CCSS.3.MD.C.7D

What is the area of the figure?

• 48 cm²

• 90 cm²

• 78 cm²

• 12 cm²

Tags

CCSS.3.MD.C.7D