Bunuel wrote:
What is the area of the quadrilateral ABCD shown in the diagram below?
(1) AB = AD = 6.
(2) ∠ADC = 60◦.
[Reveal] Spoiler:
It should beC
Statement 1: Insufficient
We can measure of area of triangular region\(\triangle ABD\) but we have no idea of the position of\(C\) , and thus no measure of the other\(\triangle BCD\) .
Statement 1: Insufficient
We do not know any length
Statement 1 + 2: Sufficient
Let
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