Answer:
we know that
applying the Pythagoras Theorem
c²=a²+b²
where
c=14 ft
a=8 ft
b=12 ft
case a)
if
c²=a²+b² C is a right angle
case b)
if
c²< (a²+b²) C is an acute angle
case c)
if
c² > (a²+b²) C is an obtuse angle
c²=14² 196
(a²+b²)=8²+12² 208
196 < 208
c² < (a²+b²) C is an acute angle
the answer is the option
C. a quadrilateral, because angle C and angle X are acute
hope thus helps lol