Two squares, each with an area of $25 \mathrm{~cm}^{2}$, are placed side by side to form a rectangle. What is the perimeter of this rectangle?
(A) $30 \mathrm{~cm}$
(B) $25 \mathrm{~cm}$
(C) $50 \mathrm{~cm}$
(D) $20 \mathrm{~cm}$
(E) $15 \mathrm{~cm}$

## Grade 7

## Part B: Each correct answer is worth 6.
Two squares, each with an area of $25 \mathrm{~cm}^{2}$, are placed side by side to form a rectangle. What is the perimeter of this rectangle?
(A) $30 \mathrm{~cm}$
(B) $25 \mathrm{~cm}$
(C) $50 \mathrm{~cm}$
(D) $20 \mathrm{~cm}$
(E) $15 \mathrm{~cm}$

## Solution

If the two squares are placed side by side, the rectangle shown would be formed.

The perimeter of this newly formed rectangle is $30 \mathrm{~cm}$.

![](https://cdn.mathpix.com/cropped/2024_04_20_748fdafcde2a47412608g-384.jpg?height=263&width=420&top_left_y=763&top_left_x=1357)

ANSWER: (A)

## Part B