Question

Question 4

A'Leila is building a pen for her pet donkey. The pen is a rectangle with one side measuring b yards and the adjacent side measuring a yards.





4a. Which formulas could A'Leila use to calculate the perimeter of the donkey's pen? Be sure to select ALL that would work to calculate the perimeter.

(2 points)
Responses

a + a + b + b
a + a + b + b

2a + 2b
2 a + 2 b

a x b
a x b

a + 2b
a + 2 b
Question 2






4b. A'Leila knows that a = (1/2)
b. If side b of her donkey's pen is going to be 12 meters, how long should side a be using this equation?

(1 point)
Responses

6 meters
6 meters

12 meters
12 meters

24 meters
24 meters

12 12
meters
12 1 half meters
Question 3






4c. Using the dimensions from part b of this question, calculate the perimeter of the donkey's pen.

(2 points)
Responses

72 meters
72 meters

49 meters
49 meters

48 meters
48 meters

36 meters
36 meters
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Answer 1

4a. Correct formulas (select all that apply):
- a + a + b + b
- a + a + b + b (duplicate choice)
- 2a + 2b
- 2a + 2b (duplicate choice)

4b. a = (1/2) b, with b = 12 → a = (1/2)*12 = 6 meters.

4c. Perimeter = 2a + 2b = 2(6) + 2(12) = 12 + 24 = 36 meters.