Question

please answer and tell me how you did it

Answer 1

Since it's a rectangle, each angle equals to 90 degrees, since total degrees 360 divided by 4 is 90 degrees.

So,
$2x = 90 \\ x = 90 \div 2 \\ x = 45$

Answer : x = 45

Hope this helps. - M

Answer 2

Its a rectangle so angle M = 90 moreover all other angles are 90 too its the property of a rectangle

2x= 90

x=45