ZA and B are vertical angles. If mZA = (3x + 13) and mZB = (5x + 9)°, then find the measure of ZA.

d

because parallelagram have all 4 angels the same size dependeing and a rectangle and square are oth parallelogram

answer: 8 years

step-by-step explanation:

the explanation is that in 8 years the child will be 20 and in 8 years the father will be 40 and 20 is half of 40.

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