Answer:
if it is a regular quadrilateral and each angle is equal then its 90 degrees
Step-by-step explanation:
Answer:
Step-by-step explanation:
<u>Simplify:</u>
- √5(√8 + √18) =
- √5*8 + √5*18 =
- √40 + √90 =
- √4*10 + √9*10 =
- 2√10 + 3√10 =
- (2 + 3)√10 =
- 5√10
<u>The value of a:</u>
Answer:
D.
Step-by-step explanation:
First, multiply straight across and put everything together:

Notice we can simplify by cancelling a b and reducing 3/12:

This cannot be simplified further.
D.
Answer:
3
Step-by-step explanation:
Answer:
If two angles are supplementary, then they must form a straight angle. If two angles are obtuse, then they can be vertical angles. If two angles are vertical angles, then they will always be congruent.
Step-by-step explanation: