Answer:
II. Angle C cannot be a right angle.
III. Angle C could be less than 45 degrees.
The minimum number of sides that a polygon must have is 3
Answer:
Step-by-step explanation:
1.

c+9=±8
either c=8-9=-1
c=-8-9=-17
so c=-1,-17
D
2.
8x^2-3=2
8x^2=5


so A
3.

so D
or
Area=14cm×6cm=84 cm²
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