Answer:
u = 6
Explanation:
In an isosceles trapezoid
• the diagonals are congruent (equal )
IK and HJ are the diagonals of the trapezoid , then
IK = HJ ( substitute values )
7u - 11 = 2u + 19 ( subtract 2u from both sides )
5u - 11 = 19 ( add 11 to both sides )
5u = 30 ( divide both sides by 5 )
u = 6