The measure of FHG is 64°.
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Subsitute for s and do the arithmetic.
.. A = 54s²
.. A = 54(1/3)² . . . . put 1/3 where s is
.. A = 54(1/9)
.. A = 6 . . . . . . square units
F. 24/25
this is the answer because cos is adjacent/hypotenuse, meaning 24 is adjacent and 25 is the hypotenuse (longest side)
