Should be A I’ll show you what I did though it might not make sense because I kind of did it in a weird way but yeah that answer should be A hope this helps :)
Answer: x + 30 + 90= 180(sum of angles on a straight line)
x= 180-120
x=60
(not sure if this is right but)
x (to the 2nd power) + y (to the 2nd power) = cos (90) (to the 2nd power)
Answer:
657
Step-by-step explanation:
312 + 138 + 207
= 450 + 207
= 657
