Question

pls solve properly on a paper​

Answer 1

The attachment below will answer your query.

Points to note, in a triangle, total angle can sum up to only 180, so if 2 angles are equal, the third will be equal too.

Also, we use vertical opposite angles. Since 2 angles are equal, 45 + x will also keep the 2 angles equal.

Keeping those in mind, here is the answer.

Answer 2

Answer:

PQRS is a parallelogram