Question

My teacher gave me an extra credit assignment with 25 minutes left of class. It is extra credit, not a timed assessment.

need done as soon as possible

Answer 1

25

Explanation:

Since Angles of a heptagon equal up to 900, we can add all these angles and equal them to 900

`x + 3x + 4x + 5x + 6x + 8x + 9x = 900`

Now we can add up the X's like regular numbers, getting

`36x = 900`

Then we divide by 36 on both sides

`x = 25`