# Math Help - star inscribed in a circle

1. ## star inscribed in a circle

I am trying to answer this problem as a practice for an exam and I can't seem to find the correct answer.

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.

2. Originally Posted by hven191
I am trying to answer this problem as a practice for an exam and I can't seem to find the correct answer.

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.

$\dfrac{red}{blue} = \dfrac{blue}{red+blue}$