what is the measure of angle D
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please attach a proper image
mjaanu:
yes its clumsy
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In triangle ABC
ANGLE A + ANGLE B + ANGLE C = 180°
x + 80° + 50° = 180°
x= 180 - 130
x= 50°
In triangle ABC AND QUADRILATERAL AFDE
ANGLE BAC = ANGLE FAE = X = 50°
In quadrilateral AFDE
ANGLE A + ANGLE F + ANGLE D + ANGLE E = 360°
50° + 100° + ANGLE D + 80° = 360°
50° + ANGLE D = 180°
ANGLE D = 180° - 50°
= 130°
ANGLE A + ANGLE B + ANGLE C = 180°
x + 80° + 50° = 180°
x= 180 - 130
x= 50°
In triangle ABC AND QUADRILATERAL AFDE
ANGLE BAC = ANGLE FAE = X = 50°
In quadrilateral AFDE
ANGLE A + ANGLE F + ANGLE D + ANGLE E = 360°
50° + 100° + ANGLE D + 80° = 360°
50° + ANGLE D = 180°
ANGLE D = 180° - 50°
= 130°
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