A quadrilateral has three acute angles each measuring 70 degree find the measure of 4th angle
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given angle 1 = angle 2 = angle 3 = 70
sum of all angle of a quadrilater = 360°
so
angle(1+2+3+4)=360
70+70+70+angle 4 =360
360-210=angle 4
angle 4= 150°
sum of all angle of a quadrilater = 360°
so
angle(1+2+3+4)=360
70+70+70+angle 4 =360
360-210=angle 4
angle 4= 150°
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