Math, asked by sreevu1234, 8 months ago

pls do it pls easy lines and angles

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Answered by hello7215

1

Answer:

20°

Step-by-step explanation:

angle ECD=x (interior opposite angle)

angle C=140° (interior opposite angle)

140°= 60°+3x+ x

=60°+4x

140°-60°= 4x

x=80°/4=20°

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