Question

an elliptical whispering room has height 5m and width 26cm. where should two persons stand if they would like to whisper back and front and be heard​

Answer 1

Answer:

sorry I don't know this answers

Answer 2

Step-by-step explanation:

width = 26 cm   ⇒   2a ( major axis) = 26 ⇒ a= 13 cm

height = 5 m  ⇒ b (semi minor axis) = 5 cm

using formula  C² = A² - B²  where c is the focus

                             = 169 -25

                       C = 12 cm

focal distance = 2C

                        = 2 ×12 = 24 feet

hence the two person should stay at the distances of 12 feet from the centre point at the foci of the ellipse .