9514 1404 393
66
Step-by-step explanation:
Angle D (x°) is the same measure as angle A. The measure of angle A is that required to make the total of angles in ΔABC be 180°.
∠A = 180° -61° -53° = 66°
The value of x is 66.
step-by-step explanation:
let pq = qr = rs = x, and xz = y and zu = z.
if the horizontal lines are parallel, then corresponding segments are in proportion:
substitute:
therefore 3 = y = z.
xu = y + z → xu = 3 + 3 = 6