The perimeter of a square is equal to the perimeter of an equilateral triangle. The length of a side of the square is given by x, and the length of a side of the equilateral triangle is given by x + 1. Which equation can be used to find the value of x?

The equation you could use is 4x = 3x + 3

Step-by-step explanation:

THE SQUARE

A square has sides with 4 equal sides. If one side is equal to x, then every other side is also x.

Add x + x + x + x to get the square’s perimeter.

The sqaure’s perimeter is 4x.

THE TRIANGLE

An equilateral triangle has equal sides too. If one side is x + 1, every other side is x + 1 too.

Add, (x + 1) + (x + 1) + (x + 1)

the triangles perimeter is 3x + 1

BOTH

The triangle and the square have the same perimeter. Therefore,

4x = 3x + 3. That is the equation.

( The solution would be x = 3, by the way)

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2x2x2.6