2) Dado el trapecio ABCD, determina α.
Alternativas:
18°
19°
20°
21°
Alternativas:
18°
19°
20°
21°
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Respuesta:
[tex]5a+15=4a-6[/tex]
[tex]5a - 4a = 15 + 6[/tex]
[tex]a = 21[/tex]
Explicación paso a paso:
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