X = 9 . Basically just divide 12 by 8 and then take that quotient (1.5) and multiply it by 6 in order to receive the product of 9.
Hope this helps! :)
A≈113.1m²
...........................113.1m²
Answer:
for any pentagon the interior angles add up to n-2 times 180 degrees.
n-2
180(n)