Answer:
C
Step-by-step explanation:
Everything else is equivalent.
Hope this helps!
Answer:
All the others are 90 degrees too
Step-by-step explanation:
In a parallelogram opposite angles are congruent. Also in a quadrilateral the sum of angles is 360 degrees. since their are two pairs of congruent angles you could make an equation and it would look like this: 180+2x =360. x would be 90 making every angle 90 degrees
Answer:

Step-by-step explanation:
This is a short and simple question, but it's good!
We are given the expression
, and simply being asked to combine like elements to simplify the expression. Take a look at the procedure below -
- Remove ( ),
- Add like elements,
- And further simplify to derive solution

<u><em>Hope that helps!</em></u>