9. answer is 12
10. answer is 3.5
11. answer is 23
Answer: Other names for plane C can be plane EFG or plane EBF hope that helps (:
Answer:
should be 30
Step-by-step explanation:
triangles have 180°
if x is 30
2x is 60
the other angle is 90
add those all together and you get 180°
Answer:
multiply them all and you will get the answer. use calculator
A. 56 cards
B. 120 cards
Sorry if it's wrong, I'm kind of confused. :P
