Decomposing Area

What is the total area of the pink model?

• 3 units squared

• 4 units squared

• 7 units squared

• 12 units squared

Tags

CCSS.3.MD.C.6

Rhys wants to plant a garden. The drawing on the grid below represents the shape of the garden he wants to plant. What is the total area of the garden Rhys wants to plant?

• 15 square feet

• 45 square feet

• 100 square feet

• 60 square feet

Ms. Olivo put two rectangular tables together. The length and width of each table is shown in feet in the model below. What is the total area of the top of the tables put together?

• 18 square feet

• 36 square feet

• 54 square feet

• 90 square feet

Tags

CCSS.3.MD.C.7D

Find the area of the figure shown.
*HINT: There are 2 figures here! How could you find the total area? 
1. Find the area of the rectangle
2. Find the area of the triangle
3. Add the areas together!

• 34 units²

• 960 units²

• 220 units²

• 480 units²

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

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

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

Tags

CCSS.HSG.CO.C.11

Find the area of the composite figure.

___ square centimeters

Tags

CCSS.3.MD.C.7D

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

Decompose the parallelogram into a rectangle. Which quadrilateral is the correct shape?

• 
• 
• 

Tags

CCSS.3.G.A.2