Answer:

Step-by-step explanation:
You have to divide this by "2"
Answer:
52, 60, 68, 76..
Step-by-step explanation:
Y=10°
If we're solving for the ninety degree angle, which I seem to doubt, then if 3x=90 then 2x=60 giving a missing total of 30. 30/3 equals 10
Answer:
978 in
Step-by-step explanation:
(9x6)+(18x18)+(25x24)=978