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GED Mathematical Reasoning Exam - Topic 4 Question 1 Discussion

Exhibit.The dimensions of the rectangle shown at the left are represented by 9n and 6n.Which of the following represents the PERIMETER of the rectangle?
B) 30n
A) 15n
C) 30
D) 9n 2
E) 54n 2

GED Mathematical Reasoning Exam - Topic 4 Question 1 Discussion

Actual exam question for GED's GED Mathematical Reasoning exam
Question #: 1
Topic #: 4
[All GED Mathematical Reasoning Questions]

Exhibit.

The dimensions of the rectangle shown at the left are represented by 9n and 6n.

Which of the following represents the PERIMETER of the rectangle?

Show Suggested Answer Hide Answer
Suggested Answer: B

by Lenna at May 29, 2026, 02:43 AM

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Tiera
5 days ago
Glad we cleared that up!
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Elza
10 days ago
Good catch! 30n is definitely the right choice.
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Catarina
15 days ago
I was leaning towards 15n, but now I see the mistake.
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Leota
20 days ago
That makes sense now!
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Tiera
25 days ago
Exactly! So, 2(9n + 6n) = 30n.
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Lezlie
1 month ago
Just remember, perimeter = 2(length + width).
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Leota
1 month ago
I feel confused about the options.
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Tiera
1 month ago
Yeah, I agree! It's 2 times the length plus 2 times the width.
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Lezlie
2 months ago
I think the perimeter is 30n.
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Sanda
2 months ago
I thought it would be something like 54n²?
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Latricia
2 months ago
Totally agree, 30n makes sense!
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Tenesha
2 months ago
Wait, how do we know it's just 30n?
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Donette
2 months ago
That's 2(15n), which is 30n!
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Huey
2 months ago
The perimeter is 2(length + width), so it's 2(9n + 6n).
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Caprice
3 months ago
I believe the formula is 2(9n + 6n), which should help me find the right answer. I just need to remember to simplify it correctly!
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Jose
3 months ago
I’m a bit lost on how to apply the dimensions 9n and 6n. Does that mean I just add them directly?
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Tamra
3 months ago
I think I practiced a similar question where we had to find the perimeter using variables. I feel like it was something like 2(length + width).
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Delfina
3 months ago
I remember that the perimeter of a rectangle is calculated by adding all the sides together, but I’m not sure how to set that up with the variables.
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