the quadrilateral is a parallelogram meaning the opposite sides are parallel to each other . One angle is shown as 80 degrees .
1 answer:
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Answer:
<em>c = 4</em>
Step-by-step explanation:
x + 5x = 12/5
30x = 12
= 2/5
= 2
<em>c </em>= [(2/5)*2] * 5 =<em> 4</em>
(5x - 2)(x - 2) = 0
5x² - 12x + 4 = 0