If the area of the figure above is 16/5square units,what is its perimeter?Correct answer is '8.4'. Can you explain this answer?

Question

Answer

First, drawing a line as shown in the diagram shows that the figure is composed of two rectangles, but the height of the smaller one is unknown. Let’s call it x. The area of the larger rectangle is (3)(1) = 3, and the area of the smaller rectangle is (1)(x) = x. Clearly, t he area of t he figure must be the sum of these two areas Area = 16/5 = 3 + x
Subtract 3:

Therefore, the perimeter of the figure is just the sum of the lengths of its sides. If we travel around the figure clockwise from the leftmost side, we get a perimeter of

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