Hey!
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Polygon: Heptagon
Vertices: 7
Sum of angles: 900°
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Solution:
158 + 120 + 139 + 121 + 125 + 126 = 789
900 - 789 = 111°
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Answer:
x = 111°
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Hope This Helped! Good Luck!
For downstairs- 28 x 38= 1064
For upstairs- 26 x 14= 364
All together- 1064 + 364= 1428
So.... 1428 seats in total.
Hope this helped! :)
.16666667 is your answer u have to round up the last number tho