SOLUTION: What is the perimeter of rectangle with coordinates, A (-3, 4), B (-3, 7), C (10, 4) and D (10, 7)

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Question 535318: What is the perimeter of rectangle with coordinates, A (-3, 4), B (-3, 7), C (10, 4) and D (10, 7)
Answer by MathLover1(20850) About Me  (Show Source):
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to find the perimeter of rectangle with coordinates A (-3, 4), B (-3, 7), C (10, 4) and D (10, 7), first find the length of sides
A (-3, 4), B (-3, 7)....both have same x and the length of side AB=7-4=3
C (10, 4) and D (10, 7),...both have same x and the length of side CD=7-4=3
A (-3, 4), C (10, 4)...both have same y and the length of side AC=10-%28-3%29=10%2B3=13
B (-3, 7), D (10, 7)...both have same y and the length of side BD=10-%28-3%29=10%2B3=13
so, a=3 and b=13 and the perimeter of rectangle is P=2%28a%2Bb%29=2%283%2B13%29=2%2A16=32