In a circle with a diameter of 10m, a regular five-pointed star touching its circumference is inscribed. What is the area of the part not covered by the star? Pls help with a solution and a diagram. Thanks!

Answer 1

google is your friend. You might start here:

http://www.contracosta.edu/legacycontent/math/stararea.htm

Answer 2

50.48 m^2