Respuesta :

smmwaite

Answer

= 5 units


Explanation

2a - 2 = a + 1

2a - a = 1+2

a = 3

XY = 3a - 4

= 3×3 - 4

= 9 - 4

= 5 units


adioabiola

The length of line XY is; 5

Isosceles trapezoid

The slant sides of the given isosceles trapezoid are equal and hence; we have;

  • 2a-2 = a +1

On this note, the value of a can be evaluated as follows;

  • 2a -a = 1+2

a = 3.

Therefore , the length of line XY is;

  • 3a - 4 = 3(3) -4

Line XY = 5

Read more on isosceles trapezoid;

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