Suppose ab = 10 cm, bc = 9 cm, ac = 11 cm, de = 11 cm, and df = 9 cm. what else do you need to know to prove that the two triangles are congruent by sss?
a.
ef = 9 cm
c.
ef = 10 cm
b.
ef = de
d.
ef = df

Which is true about the solution to the system of inequalities shown? y > 3x + 1 y < 3x – 3 only values that satisfy y > 3x + 1 are solutions. only values that satisfy y < 3x – 3 are solutions. values that satisfy either y > 3x + 1 or y < 3x – 3 are solutions. there are no solutions.