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3 years ago

The question is on the image.

Mathematics

1 answer:

Amiraneli [1.4K]3 years ago

7 0

Hi there!

$\huge\boxed{\text{22 cm}}$

We know that:

Area of a rectangle = l × w

The areas are the same, so:

3x · 4 = 6(3x - 2.5)

Simplify:

12x = 18x - 15

Solve for x:

15 = 6x

x = 2.5

Plug in this value of x to find the perimeter of rectangle B:

P = 2l + 2w

l = 6

w = 3(2.5) - 2.5 = 5

P = 2(6) + 2(5) = 22 cm

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Answer:

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Step-by-step explanation:

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2 years ago

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Answer:

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2 years ago

The question is on the image.​

The question is on the image.