To find the perimeter of a rectangle, we first need to determine the lengths of its sides. The vertices of the rectangle are given as:
- \( A(-7, -2) \)
- \( B(-3, -2) \)
- \( C(-3, -5) \)
- \( D(-7, -5) \)
Step 1: Calculate the Lengths of the Sides
-
Length of Side AB \[ AB = |x_2 - x_1| = |-3 - (-7)| = |-3 + 7| = |4| = 4 \]
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Length of Side AD (or BC) \[ AD = |y_2 - y_1| = |-5 - (-2)| = |-5 + 2| = |-3| = 3 \]
Step 2: Calculate the Perimeter
The perimeter \( P \) of a rectangle can be calculated using the formula: \[ P = 2 \times ( \text{Length} + \text{Width} ) \]
Here, the Length is \( AB = 4 \) and the Width is \( AD = 3 \).
\[ P = 2 \times (4 + 3) = 2 \times 7 = 14 \]
Final Answer
The perimeter of the rectangle is \( \boxed{14} \).