Explanation:
I am not sure I understand the numbers in the description, but I assume you meant that
the baseline is x/2 meter,
the height to the baseline is also x/2 meter.
the area is 32 m².
the area of a triangle is
baseline × height / 2.
so, here we have
32 = x/2 × x/2 / 2 = x²/4 / 2 = x²/8
x² = 32×8 = 256
x = 16 m
so the base and the height are both 16/2 = 8 m long.