Respuesta :

Answer:

<C=<B=88°, <D=<A=92°(As oppositeanglesofa paralellogramare equal), AB=CD=80

Step-by-step explanation:As the opposite sides of a paralellogram are equal, 15x-100=5x+20

10x=120

x=12

Now, 15×12-100=80

So, AB=CD=80