star15
star15
26-02-2017
Mathematics
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PLS SOLVE ASAP!!!!
Solve for angle 1.
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Аноним
Аноним
26-02-2017
∠1 + ∠2 = 180°
⇒ 2x + 10x = 180°
⇒ 12x = 180°
⇒ x = 180°/12 = 15°
∠1 = 2x = 2×15° =
30°
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