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Mathematics 11 Online
OpenStudy (rebecca1588):

Three intersecting lines form triangle BCE. https://dw6y82u65ww8h.cloudfront.net/organisations/124/G8_GA5_Q20_014_StemArt.png Use angle relationships to find the sum of the measures of ∠A, ∠D, and ∠F. m∠A+m∠D+m∠F=____∘

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