Sign In
The distance between the hole and tee will be equal to the value c in the foci point.
Ellipses have a reflective property.
About 22.25 feet
Due to the reflective property of an ellipse, you can aim your putt at any part of the border. The ball will reflect off the border and go directly into the hole.
Let's recall the properties of an ellipse with center (0,0).
| Properties of Horizontal Ellipses | ||||
|---|---|---|---|---|
|
Standard Equation x^2/a^2+y^2/b^2=1 a> b>0 |
Major Axis Horizontal |
Vertices (± a,0) |
Co-vertices (0,± b)
|
Foci (± c,0) on x-axis
|
| Properties of Vertical Ellipses | ||||
|
Standard Equation x^2/b^2+y^2/a^2=1 a> b>0 |
Major Axis Vertical |
Vertices (0,± a) |
Co-vertices (± b,0) |
Foci
(0, ± c) on y-axis |
We can see that the given ellipse is a horizontal ellipse. The hole and tee are located at the foci, (± c,0). Therefore, the distance between them will be equal to the value of 2c. To determine the value of c, we first need to find a and b. The length of the major axis is 2a, and the length of the minor axis is 2b. Let's identify the values of a and b.
We have identified the value a= 12. Let's identify the value of b.
Now that we have the values of a and b, we can use the fact c^2=a^2-b^2 for an ellipse to determine the value of c.
a= 12, b= 4.5
Calculate power
Subtract terms
sqrt(LHS)=sqrt(RHS)
Calculate root
Finally, using the value of c= 11.124, we can determine the distance between the hole and tee. Distance=2 c ⇕ 2( 11.124) ≈ 22.25 feet
The definition of an ellipse is a circle stretched in one direction with a set of points that have a total fixed distance from two points. Because of this, ellipses have a reflective property. Aiming the putt at any point of the ellipse border will directly go to the hole.