Asked by Daniel

Suppose a white dwarf star has a diameter of approximately 1.6692x10^4 km. Us the formula 4pie^2 to find the approximate surface area of the star
Answered by bobpursley
surface area= 4 PI * (diameter/2)^2

where did you get your formula?
Answered by Daniel
This is what it said in the book.

use the formaula

pie = 3.14

4pie r ^2