in quadrilateral ABCD if A = 100° B = 80° C= 50° then find D
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Answer:
<D=130°
Step-by-step explanation:
The quadrilateral ABCD will have a total angle of 360°. so the 4th angle D will be.,
<D= 360-(100+80+50)
=360-230
=130°
Answered by
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A+B+C+D =360°
100°+80°+50°+D =360°
230°+D=360°
D=360°-230°
D=130°
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