Question

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Answer 1

Answer:

11. as AD//BC,

L DAC= L ACB

y= 40°

now, L BCE = 70°

L BCE= L CAB +L ACB

70°= L CAB + 40°

=> L CAB = 70°- 40°

=> L CAB = 30°.

SINCE AB//DC,

L DAB + L ADC = 180° (corresponding angles)

=>40°+70° + x = 180°

=> x= 180°- 110°

=> x = 70°