Question

What is the length of AB—?

Answer 1

Answer:

56

Step-by-step explanation:

Since ABCD is a parallelogram, AB= DC

$4y=(y+42)$

Simplifying the equation

$3y=42$

Divide 3 on both sides, to get $y$

$y=14$

$AB =4y = 4\times14$

              $=56$

Answer 2

Ab=4y=4 x 14
=56
Ab=DC