Question

11. In a parallelogram ABCD, AB = (x + 7) cm
and CD = (2x – 5) cm. Find the length of
АВ.​

Answer 1

Answer:

It cannot be determined as x can have any value

Answer 2

Answer:

Step-by-step explanation:

Given that,

AB=(x+7)

and CD=(2x-5)

We know, that in a parallelogram, opposite sides are parallel and equal,

∴AB=CD

Putting given values, we get,

x+7=2x-5

∴7+5=2x-x

∴x=12

Once again, placing x as 12 in AB=(x+7), we get

AB=12+7

∴AB=19 cm