# Geometry Puzzle – Challenge 73

Time for another great math challenge for those who enjoy solving mathematics and critical thinking challenges.

## Challenge:

The perimeter of a square is 13 cm and the perimeter of an equilateral triangle is 7 cm. What is the difference of a side of the square and a side of a triangle?

A- $$\frac{7}{13}$$ cm

B- $$\frac{11}{12}$$ cm

C- $$1\frac{1}{4}$$ cm

D- $$2\frac{1}{4}$$ cm

E- $$\frac{13}{7}$$ cm

### The Absolute Best Book to challenge your Smart Student!

The perimeter of a square is 13cm. Therefore, one side of the square is $$\frac{13}{4}$$ cm.
The perimeter of the equilateral triangle is 7cm. Therefore, one side of the triangle is $$\frac{7}{3}$$ cm.
The difference of a side of the square and a side of a triangle is:
$$\frac{13}{4} – \frac{7}{3} = \frac{39-28}{12} = \frac{11}{12}$$ cm

36% OFF

X

## How Does It Work?

### 1. Find eBooks

Locate the eBook you wish to purchase by searching for the test or title.

### 3. Checkout

Complete the quick and easy checkout process.

## Why Buy eBook From Effortlessmath?

Save up to 70% compared to print

Help save the environment