Question

If the length of the minor axis of an ellipse is 6 units and the length of the major axis is 10 units, how far from the center are the foci located?

A) 4 units
B) 2 units
C) √4 units
D) √8 units
E) 5 units

Answer 1

a = 5
b = 3
a^2 = b^2 + c^2

so, c = 4

Answer 2

c=4