Carcass wrote:
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In the figure above, the area of the parallelogram is
A. 40
B. \(24\sqrt{3}\)
C. 72
D. \(48\sqrt{3}\)
E. 96
Area of parallelogram = (base)(height)Start by drawing an extra line, which also happens to be the
height of the parallelogram
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This creates a special 30-60-90 right triangle
When we compare the blue 30-60-90 right triangle with the purple BASE 30-60-90 right triangle, . . .
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We see that the blue 30-60-90 right triangle is
4 times bigger than the purple BASE 30-60-90 right triangle, . .
So, the missing lengths are
4 and
4√3At this point, we know the base and the height
Area of parallelogram = (base)(height)= (12)(4√3)
= 48√3
Answer: D