Plot and connect the points A(-4,2), B(4,2), C(4,-2), and D(-4,-2). Then, find the perimeter of rectangle ABCD.
1 answer:
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D. 1/4
Explanation:
a perfect square is written in the form
(1)
In our problem, we have this perfect square:
(2)
with C being unknown. However, by comparing (1) and (2), we know that
So, we find
and therefore, the missing term must be
so the complete square is