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Mathematics

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Find m angle BCD. Geometry math questions

Find m angle BCD. Geometry math questions class=

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Аноним Аноним

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Sum of two interiors=exterior

[tex]\\ \tt\longrightarrow 69+3x+12=6x+27[/tex]

[tex]\\ \tt\longrightarrow 3x+81=6x+27[/tex]

[tex]\\ \tt\longrightarrow 3x=54[/tex]

[tex]\\ \tt\longrightarrow x=18[/tex]

m<BCD=6(18)+27=108+27=135

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