Answer: 3x-6 in^2
Explanation:
There is no way to figure out what x is without additional information, so you have to leave the answer in this form
Answer: 3x - 6 (in^2)
base * height / 2
=
3 ( 2x - 4) / 2 (in^2)
= 3x - 6 (in^2)
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