Answer:
d. m<R = 128, m<S = 52, m<T = 128, m<U = 52
Explanation:
The sum of interior angles in this rectangle is equal to 360°
6x - 4 + 2x + 8 + 2x + 8 + 6x -4 = 360° add like terms
16x + 8 = 360 subtract 8 from the both sides
16x = 352 divide both sides by 16
x = 22 now to find the value of each angle replace x with 22