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Cerrena [4.2K]
4 years ago
15

Law of Sines:

Mathematics
1 answer:
djverab [1.8K]4 years ago
3 0
Hello,

as sin A/a= sin B/b
==>(1/2)/2 =sin B/2
==>sin B=1/2
==>B=30° or 150°
But one say triangle ABC is not a plat triangle ==>150° is excluded.

Answer B: 30°
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