Try another version of this question

A person in a whispering gallery standing at one focus of the ellipse can whisper and be heard by a person standing at the other focus because all the sound waves that reach the ceiling are reflected to the other person. If a whispering gallery has a length of 122 meters, and the foci are located 11 meters from the center, find the height of the ceiling at the center.

OpenStax Precalculus

Height:

OpenStax Precalculus

Height:

Get help:

Box 1: Enter your answer as an integer or decimal number. Examples: 3, -4, 5.5172

Enter DNE for Does Not Exist, oo for Infinity

60

Box 2: Select the best answer

meters