Answer:
A
Step-by-step explanation:
The base angles are equal, thus we can say:
m∠J = m∠M
15x + 3 = 11x + 15
15x - 11x = 15 - 3
4x = 12
x = 12/4
x = 3
ANgle M and Angle K are opposite angles. For isosceles trapezoids, opposite angles are supplementary (add up to 180). So we can say
Angle M + Angle K = 180
Since we know x = 3, angle M is 11(3) + 15 = 48
THus,
Angle M + Angle K = 180
48 + Angle K = 180
Angle K = 180 - 48 = 132
A is right.
