The total horizontal length of the bottom edges is the same as the length of the top edge, so is 8 in. Likewise, the total vertical length of the right edges is the same as the length of the left edge: 8 in. That makes the total length of all edges be 4×8 in = 32 in.
The perimeter is 32 in.
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<u>Area</u>
The figure can be decomposed several ways. One of the easiest is to consider it as an 8-inch square with a 3 in by 5 in rectangle removed. Then the area is ...