Question

Help................​

Answer 1

Answer: DB is 5

Explanation:

Alright, lets get started.

Since given that AD is parallel to CB.

And AB is parallel to CD.

And the angle A is given as 90°

It means the given figure is a rectangle.

And the diagonals of the rectangle are equal to each other.

So,
`DB=AC`

So,
`DB=5`

Hence the answer is 5 ... Answer

Hope it will help :)