Unit 2 Review

What is Area?

100

Question 1: Which rectangle has a greater area and how do you know? Look at #1 under "What is Area" category on your paper.

Rectangle A 

200

Question 2: Bonsa says the area of this rectangle is 19 square units. Is he correct? Why or why not? Look at Question #2 under "What is Area" on your paper. 

No, he is not correct- the square tiles are not evenly spaced, there are gaps, and overlaps - so this area is not accurate. 

300

Question 3: Find the area of the rectangle. Justify how you know. Look the rectangle on #3 under "What is Area" on your paper. 

The area is 48 square units. 

400

Question 4: Select all expressions that represent the area of the rectangle. Look at #4 under "What is Area" on your paper. 

a. 8 x 5, b. 5 x 8

500

Question 5: Miss Harrison and Mrs. Curry are planning out the Olympics chariot race. They want at least 30 square feet of floor space and less than 50 feet. The walls all have to measure less than 10 feet. What are two possible expressions for the measurements of the chariot race?

Look at #5 on page 2 under "What is Area?"

All expression options: 

5 x 6, 6 x 6, 7 x 6, 8 x 4, 8 x 5, 8 x 6, 7 x 7, 9 x 4, 9 x 5

Area with Grids or Tickmarks

100

Question 1: Explain why the area of this rectangle is 55 square units. Look at #1 on Page 2 under "Area with Grids or Tickmarks"

The area is 55 because there is 5 rows of 11 square units in each row. (5 rows, 11 columns)

200

Question 2: Find the area of this rectangle. Look at #2 under "Area with Grids or Tickmarks" on Page 2. 

6 x 6  = 36 square units (6 rows, 6 columns)

300

Question 3: Create a rectangular area that represents the expression 6 x 4.

Look at #3 on Page 2 under "Area with Grids or Tickmarks"

Answers may vary.

400

Question 4: How does the expression (5 x 5) + (5 x 3) represent the area of the rectangle below?

Look at #4 on Page 2 under "Area with Grids or Tickmarks"

You can decompose the gridded rectangle into two sections - 5 rows of 5 columns and 5 rows of 3 columns, and then add them together. 

500

Question 5: What is the area of the rectangle above? 

Look at #5 on Page 2 under "Area with Grids or Tickmarks"

40 square units.

Area with Side Lengths

100

Question 1: What is the area of this rectangle? How do you know?

Look at #1 on page 3 under "Area with Side Lengths"

6 x 2 = 12 square inches

200

Question 2: A rectangle has an area of 18 square inches. What could be the length and width of the rectangle? (If needed, look at #2 on page 3 under "Area with Side Lengths")

a) 5 in and 3 in
b) 3 in and 6 in
c) 5 in and 4 in
d) 2 in and 8 in
e) 9 in and 2 in

b and e

300

Question 3: Surafale bought two pieces of fabric. The purple fabric is 8 yards by 2 yards. The blue fabric is 7 yards by 4 yards. Which fabric has the larger area? Justify your reasoning. (If needed, look at #3 on page 3 under "Area with Side Lengths")

The blue fabric, it has an area of 28 square yards (7 x 4 = 28) where as the purple fabric only covers an area of 16 square yards (8 x 2 = 16)

400

Question 4: Find the area of the figure.

Look at #4 on page 3 under "Area with Side Lengths"

16 square in + 8 square in = 24 square inches

500

Question 5: What are the missing side lengths? (Don't do the area...Ms. Larson made a mistake. :))

Look at #5 on Page 3 under "Area with Side Lengths"

Missing side length: 2 feet