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Which of the following could be the perimeter of a rectangle with an area of 48 square centimeters? A) 32 centimeters B) 48 centimeters C) 36 centimeters D) 24 centimeters

asked
User Yelena
by
7.7k points

2 Answers

4 votes

Answer:

Step-by-step explanation:

answered
User Icats
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7.7k points
2 votes

Answer:

A) 32 centimeters

Explanation:

If the rectangle has a length L and a Width W the area is
A = L x W

Perimeter
P = 2(L + W)

We can write this as
P/2 = L + W

Given area = 48, lets try some factors of 48 and also add them and multiply by 2 to get the perimeter of each configuration

48 = 1 x 48 ⇒ P = 2( 1 + 48) = 2 x 49 = 98

48 = 2 x 24 ⇒ P = 2(2 + 24) = 2 x 26 = 52

48 = 3 x 16 ⇒ P = 2(3 + 48) = 2 x 51 = 102

48 = 4 x 12 ⇒ P = 2(4 + 12) = 2 x 16 = 32

48 = 6 x 8 ⇒ P = 2(6 + 8) = 2 x 14 = 28

now compare these values to the answer choices and see which one fits

Only 32 (Answer choice A) fits

So correct answer
A) 32 centimeters

answered
User Tim Richardson
by
8.4k points

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