Abcd is a trapeziun in which ab ii dc .If angle a = angle b = 40
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1
Answer:
140
Step-by-step explanation:
angle a = angle b
angle sum property of quad
angle a+ angle b+ angle c+ angle d=360
x+x+80=360
2x=280
x=140
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0
140 degree angle c and d each as all angles make a sum of 360
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