9. Which statement is NOT a guaranteed property of parallelograms? a) Opposite sides are congruent b) Opposite angles are supplementary c) Consecutive angles are supplementary d) Diagonals bisect each other 10. Find the value of the variables. 3 a) x = 5, y = 3, z = 102 b)x= 2, y = 1, z = 102 c) x = 2, y = 3, z = 102 d) x = 2, y = 3, z = 78 Zº 7 2x + 3 102% 3y - 6

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