Abcd is an isosceles trapezium. an and dc are the parallel sides. perpendicular de and cf are drawn on an. find out it triangle add congruent to bcf

$113.42

i hope that is right.

step-by-step explanation:

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