Since it is a geometric sequence each term will be a specific multiple of the term preceding it, called the common ratio...
126/42=378/126=1134/378=3
The sequence is a(n)=a(3)^(n-1) and we know the second term is 42 so:
42=a(3)^(2-1)
42=3a
a=14
So the first term is 14.
Your answer is -8. I did it out of order. My apology.
That regular polygon has 6 sides, which is called a hexagon.
I found this by dividing 360 by 60, which equals of 6.
Hope this helps! :)
"A" is the first letter of the name of parallelogram ABCD. "E" is the first letter of similar parallelogram EFGH. The corresponding angles are the corresponding letters.
The appropriate answer is
E
