ZarianG252577 ZarianG252577

28-10-2022
Mathematics

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#2 Find angles B, C, D B c * 60 - 2 D A) 120, 60, 60 B) 60, 60, 60 C) 120, 120, 60 D) 60, 60, 120

2 Find angles B C D B c 60 2 D A 120 60 60 B 60 60 60 C 120 120 60 D 60 60 120 class=

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AlbertaM5457 AlbertaM5457

28-10-2022

[tex]\begin{gathered} \angle A+\angle B=1\text{80 (supplementary angle)} \\ 60^{\circ}+\angle B=180^{\circ} \\ \angle B=180^{\circ}-60 \\ \angle B=120^{\circ} \end{gathered}[/tex][tex]\begin{gathered} The\text{ base of the trapezium are congruent} \\ \angle B\cong\angle C \\ \angle C=120^{\circ} \end{gathered}[/tex][tex]\angle D=60^{\circ}[/tex]

The answer is C.

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