Answer: (4) d=112 (7) 2.75 or 2 3/4
explanation: pictured below
The third one it could be one.
By definition the perimeter of an ellipse is given by:

Where,
a: semimajor axis of the ellipse
b: minor semiaxis of the ellipse
Substituting values we have:

When doing the corresponding calculations, we have that the perimeter is given by:

Round to the nearest tenth:
Answer:
the estimated perimeter of the ellipse is:
You need the first term and the common ratio.
Answer: hi I think the answer is the second one from up to down sorry if it's wrong :3
Step-by-step explanation: