in the quadrilateral if one angle is 80 degree second angle is 120 degree 4th is 120 degrees so what is the third angle of that quadrilateral
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Answered by
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40 degres
Step-by-step explanation:
sum of measures of all angles of quadrilateral is 360degree
therefore, 1st angle+2nd angle+3rd angle +4th angle= 360°
120+120+80+4th angle=360°
320+4th angle=360°
4th angle = 360 - 220
therefore,4th angle= 40°
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