Answer: 80
Step-by-step explanation:
We can use the formula , where are the lengths of the diagonals.
By the distance formula,
So, the area is
Answer:
150°
Step-by-step explanation:
number of terms=12
sum of exterior angles=360
one exterior angle=360/12=30
interior angle=180-30=150°
(2x - 6)^2 = (2x - 6)(2x - 6) = 4x^2 - 12x - 12x + 36 = 4x^2 - 24x + 36
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