Question

the measure of an angle of a hexagon are X degree (x - 5 degree x), ( x - 5 degree), ( 2 x - 5 degree), ( 2 x - 5 degree), ( 2 X + 20 degree) find the value of x

Answer 1

sum of all interior angles of a hexagon of side n=(n-2)*180

n=6

(6-2)*180=720 degree

now

x+(x-5)+(x-5)+(2x-5)+(2x-5)=720

9x=720

x=80

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