The perimeter of the rectangle is 34 cm, its width is 7 m, how long is the rectangle?

To find the length of the rectangle, we will apply the formula to find the perimeter of the rectangle.
Let’s start by considering the condition of the problem. It says that the perimeter of the rectangle is 34 meters and its width is 7 meters.
So, let’s start by recalling the formula for finding the perimeter of a rectangle:
P = 2 (a + b), where a and b are the length and width of the rectangle.
Let’s denote by x meters the length of the rectangle.
2 (x + 7) = 34;
We solve the equation:
x + 7 = 34: 2;
x + 7 = 17;
x = 17 – 7;
x = 10 meters.
Answer: 10 meters.