Step-by-step explanation:
The answer is :-
x and w : Dr. Alpha was meeting up with this patient in the library.
Know why:-
Because x and w are Vertically Opposite Angles! And they are always same!

C and D.............................
Answer:
bh/2
Meaning :
base times height, halfed
The answer would be 10 because 9+-5=4+-1=5+5=10
Answer:
A
Step-by-step explanation: