Question

The angles of a heptagon are (x +3)°,(2x+5)°,(x+8)°,(3x +1)°,(5x - 6)°,(2x+9)° and (x - 5)°.Calculate x.

Please answer this question step by step​

Answer 1

Step-by-step explanation:

sum of angle of heptagaon = 900

therefore x+3 + 2x+5 + x+8 + 3x+1 + 5x-6 + 2x+9 + x-5 = 900

x + 2x + x + 3x + 5x + 2x + x + 3 + 5 + 8 + 1 -6 + 9 -5= 900

15x + 15 = 900

15x = 900-15

x = 885/15

x = 59