OpenStax, Algebra and Trigonometry 2e §12.1 The Ellipse · Try It 9 · Geometry · Conic sections
The Ellipse · Try It 9
Suppose a whispering chamber is 480 feet long and 320 feet wide.
ⓐ What is the standard form of the equation of the ellipse representing the room? Hint: assume a horizontal ellipse, and let the center of the room be the point
ⓑ If two people are standing at the foci of this room and can hear each other whisper, how far apart are the people? Round to the nearest foot.
OpenStax, Algebra and Trigonometry 2e · §12.1 The Ellipse · Try It 9
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