Q. 435.0( 1 Vote )

# Fill in the Blanks

An ellipse is described by using an endless string which is passed over two pins. If the axes are 6 cm and 4 cm, the length of the string and distance between the pins are ____________.

Answer :

a = 6, a^{2} = 36

b = 4, b^{2} = 16

b^{2} = a^{2} (1 - e^{2})

16 = 36 (1 - e^{2})

4 = 9 (1 - e^{2})

Hence the length of strings and distance between the pins is & respectively.

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