Decomposing Shapes and Finding Their Area

Find the area. 

• 88 inches²

• 60 inches

• 88 inches 

• 60 inches²

Tags

CCSS.6.G.A.1

If the area of a triangle is 30 square inches and the base is 5 in., what is the height?

• 3 in

• 6 in

• 12 in

• 13 in

Tags

CCSS.6.G.A.1

area of a rectangle is 52 square meters.  The width is 4 meters.  What would the length be?

• 17 m

• 13 m

• 15 m

• 48 m

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

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 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.5A

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.7D

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

Tags

CCSS.6.G.A.1

Using the given measurements, find the area of the rectangle.

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3