the side of a pentagon are produced in order and their exterior angles so obtained measure 2 X + 20, X-10,3 X + 30,4X- 15,5X- 10. find the measure of X and find all the exterior angle of the pentagon.
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x=23°
2x+20=66°
x-10=13°
3x+30=99°
4x-15=107°
5x-10=105°
sum of angles in a Pentagon is =360°
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