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Point A of rectangle ABCD is located at (-3, 12) and point C is located at (9, 5). What is the area of rectangle ABCD?
Correct Answer: 84
Explanation/Reference:
Explanation:
If point A is located at (-3, 12) and point C is located at (9, 5), that means that either point B or point D has the coordinates (-3, 5) and the other has the coordinates (9, 12). The difference between the different x values is 9 – (-3) = 12 and the difference between the different y values is 12 – 5 = 7. The length of the rectangle is 12 units and the width of the rectangle is 7 units. The area of a rectangle is equal to its length multiplied by its width, so the area of ABCD = 12 x 7 = 84 square units.
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