Answer:
B and C
Explanation:
(15)
The opposite sides of a parallelogram are equal , so
CD = AB , that is
7x - 54 = 5x - 2 ( subtract 5x from both sides )
2x - 54 = - 2 ( add 54 to both sides )
2x = 52 ( divide both sides by 2 )
x = 26
Then
CD = 7x - 54 = 7(26) - 54 = 182 - 54 = 128 → B
(16)
Consecutive angles are supplementary, sum to 180° , then
6y + 19 + 2y + 9 = 180
8y + 28 = 180 ( subtract 28 from both sides )
8y = 152 ( divide both sides by 8 )
y = 19
Then
∠ B = 6y + 19 = 6(19) + 19 = 114 + 19 = 133°
Opposite angles are congruent , so
∠ D = ∠ B = 133° → C