Answer:
24 inches
Explanation:
Similar to the question you asked earlier, this question also has 3 small rectangles and we can combine it to make it a one big rectangle. The equation for the perimeter is this:
2W + 2L = P
We know W and P (the width of the small rectangles times 3), thus plugging in those values would give us:
2(30*3) + 2L = 324
180 + 2L = 324
2L = 144
L = 72
We need to divide this number by 3 to get the length of the small rectangle, which would give us 72/3 or 24.