Answer:
d
Step-by-step explanation:
The sum to n terms of a geometric sequence is
=
where a is the first term and r the common ratio
Here a = 3 and r = 12 ÷ 3 = 4 , thus
= = 65536 - 1 = 65535 → d
25π/18 * 180/π= 250°
2,57 divided by 1.5 equals
1.713
the answer is vertices
hope this helps!