180° because it is half of a full circle(360°)
Answer:
1. a.Double bond
2. d.6
3 d.A low boiling point
4. (I dont know)
5. b.False
7. a.True
8. a.True
9. a.True
10. b.False
11. a. alloys are often stronger and less reactive than pure metals
12.c. an attraction between positive ions and electrons
13.c. good thermal insulator
14. b. solid
15.a. metallic
16. a.high
17.a. thermal
18.a. ductile
19. a.electrical
20. a.valence electrons
Step-by-step explanation:
Answer:
(A)The height of each pyramid is One-half h units.
Step-by-step explanation:
Height of the Cube = h units
Volume of the Cube 
If Base of the cube =Base of the square pyramid
Base of the square pyramid = h units



Since Volume of the Cube = Volume of Six Square Pyramids
Then:

Andy's family drove 3000 meters. 1 kilometer =1000 meters
Noticed how it forms a supplementary angle.
A supplmentary angle is basically two angles that added up to 180 degrees.
So we have:
64 + x = 180
Then we solve for "x", so "x" = 116.
Hope that makes sense :)