Asked by Julia

David wants to build a pen for his goat. He wants the area of the pen to be 48 square feet. If the length and width of the pen are whole numbers, which of the following could be the perimeter of the pen?

- p = 26 ft
- p = 28 ft
- p = 30 ft
- p = 36 ft
Answered by Ms. Sue
What is your answer?

Hint: Think of the factors of 48.

Answered by Julia
If the area is 48 square ft., the length would be 16 ft., and the width would be 3 ft. Correct?
Answered by Ms. Sue
P = 2L + 2W
P = 32 + 6
P = 38

But that's not one of your answer choices.

Try again.
Answered by Julia
A = L times W, right? 3 times 16 is 48. I am confused.
Answered by Ms. Sue
What are the factors of 48?
Answered by Julia
2 and 24, 3 and 16, 4 and 12, 6 and 8.
Answered by Julia
Oh god, I'm so stupid, they would all equal 48! HAHA!! Oops.
Answered by Ms. Sue
Yep! Now which one of those pairs fits one of your perimeter answer choices?

Answered by Julia
So,it couldn't be 2 and 24, because that would equal 52, right? So it would have to be either 4 and 12 or 6 and 8.
Answered by Julia
8 times 2 is 16, plus 6. That would equal 22, so it would have to be 4 and 12. 12 times 2, plus 4. 24 plus 4 equals 28, which is an answer choice. Thanks Ms. Sue!
Answered by Ms. Sue
2 * 4 = 8
2 * 12 = 24

24 * 8 = 32

Nope. That doesn't work either.

You're on your own now.
Answered by naya
ms sue u suck ur not even a real teacher. ur just saying ur on ur own ive senn u on other jiskha websites asking for answers.
Answered by ProPhantom001
HEY BE NICE EVERY ONE IS ON THEIR OWN YOU ARE HERE BECAUSE YOU WANT THE ANSWER BUT MS SUE IS HERE TO HELP NOT GIVE THE ANSWER
Answered by Anonymous
The factors of 48 that multiply to give 48 are 2 *24, 3*16, 4*12, 6*8
Solving from the options
Perimeter = 2L +2B
Starting with 6 and 8 we have
2(8)+2(6)= 16+12= 28
That's the answer....
Answered by Cupcake
So it’s 2 and 12…
Answered by Tortis
Perimeter and Areas of Rectangles and Squares Practice
1. P = 22 ft
2. P = 28 ft
3. 6 ft
4. 10 ft
5. A = 80 cm 2
6. 10.5 in.
7. 53 in.
8. P = 24 ft
9. A = 36 ft 2
10. One side of a square equals 2 feet
11. The windows have the same area: The perimeter of Window B is 20 feet
12. The area for the square is 16 square inches: The area of the square is equal to the perimeter of the square.
100% correct your welcome good luck
Answered by (=
i got 13/14 idk what i did wrong but its good enough
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