The polygon has 7 sides
The sum of interior angles of a polygon is calculated as:
Sum =180 * (n-2)
In this question, the sum of the measures of the interior angles of a regular polygon is 900
So, we have:
180 *(n - 2) = 900
Divide both sides by 180
n - 2 = 5
Add 2 to both sides
n = 7
Hence, the polygon has 7 sides
Read more about interior angles of a regular polygon at:
https://brainly.com/question/26130142
