Respuesta :
Based on the definition of an isosceles trapezoid, the length of XY is: 5 units.
What is an Isosceles Trapezoid?
An isosceles trapezoid is a trapezoid that has two legs that are congruent.
Therefore:
2a - 2 = a + 1
Add like terms
2a - a = 2 + 1
a = 3
XY = 3a - 4
Plug in the value of x
XY = 3(3) - 4
XY = 5 units
Therefore, based on the definition of an isosceles trapezoid, the length of XY is: 5 units.
Learn more about isosceles trapezoid on:
https://brainly.com/question/4758162
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