Answer:
67 units
Explanation:
67 units squared
First, you multiply all the combinations possible with the 3 values.
5x1.5, 5x4, 1.5x4
But there are 2 of every side so you multiply each by 2.
5x1.5x2 = 15
5x4x2 = 40
1.5x4x2 = 12
12+40+15 = 67
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