Question

The angles of heptagon are (x+3) degree,(2x+5) degree,(x+8) degree,(3x+1) degree,(5x_6) degree,(2x+9) degree and(x_5) degree.Calculate x
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Answer 1

Answer:

sum of all angles=900

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

15x+15=900

15(x-1)=900

x-1=900/15

x-1=60

X=61

Answer 2

Answer:

23

Step-by-step explanation:

(x+3)+(2x+5)+(x+8)+(x+1)+(5x-6)+(2x+9)+(x-5)=360

(x+2x+x+3x+5x+2x+x) + (3+5+8+1-6+9-5)=360

15x + 15 = 360