Area Review

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

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

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

Tags

CCSS.3.MD.C.5

CCSS.3.MD.C.6

CCSS.3.MD.C.7

What is the area of figure B

• 28 square units

• 36 square units

• 44 square units

• 24 square units

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

Tags

CCSS.3.MD.C.5

CCSS.3.MD.C.6

CCSS.3.MD.C.7

Diego said he can find the area of figure B by first multiplying 6x6. What should Diego's next step be?

• adding the area of 1 and 2

• subtracting the area of 1 and 2

• Nothing. His area is 36 square units

• decomposing and rearranging

Tags

CCSS.3.MD.C.5

CCSS.3.MD.C.6

CCSS.3.MD.C.7

CCSS.3.OA.A.3

CCSS.3.OA.C.7

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 D

• $21\ cm^2$

• $64\ cm^2$

• $26\ cm^2$

• $40\ cm^2$

What is the area of figure C?

• $96\ cm^2$

• $150\ cm^2$

• $50\ cm^2$

• $40\ cm^2$