Answer:
1,000 feet
Step-by-step explanation:
From point Q to point R, the x values change by 20 units while the y values stay the same. This side of the polygon has a length of 20
From point R to point S, the y values change by 30 units while the x values stay the same. This side of the polygon has a length of 30
From point S to point T, the x values change by 20 units while the y values stay the same. This side of the polygon has a length of 20
From point T to point Q, the y values change by 30 units while the x values stay the same. This side of the polygon has a length of 30
The total perimeter is 20 + 30 + 20 + 30 = 100 units, each unit represents 10 feet, so the total perimeter is 100(10) = 1,000 feet
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