Weegy what is the estimated perimeter of an ellipse if the major axis has a length of 15 ft. and the minor axis has a length of 7.5 ft round your answer to the nearest tenth

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:
 
 
 the estimated perimeter of the ellipse is:
 

Yup, just figured it out. :P