Question Detail

GET 102 GEOMETRIC CONSTRUCTION: CONIC SECTIONS Objective Question

Question

According to the definitions under 'CONIC SECTIONAS LOCI OF A MOVING PART', an Ellipse is defined as a set of points in a plane whose sum of distances to two fixed points, called foci, is what?
Options
A Varies depending on the point.
B Is always equal to the distance between the foci.
C Is a constant.
Correct Answer
D Is always zero.
Correct Answer

Option C is the correct answer.

Detailed Explanation

Page 4, under 'Ellipse', states: 'Ellipse: This is defined a set of points in a plane whose sum of distances to two fixed point, called foci, is a constant.'

Hint

Refer to the 'Ellipse' definition under 'CONIC SECTIONAS LOCI OF A MOVING PART' on page 4.

Question Info