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elixir [45]
2 years ago
12

5cm

Mathematics
1 answer:
Maksim231197 [3]2 years ago
5 0
Answer:
I’m pretty sure it 15cm
Step by step
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In the figure, if m∠ABD = 120º, then m∠ADC = ___
Darya [45]
Okay first, use the sin rule (\frac{SinA}{a} =  \frac{SinB}{b}
so \frac{Sin120}{35} * 30 = SinB
sin^-1 this and you get 47.928....this is angle ADB
and as it is on a straight line, 180 - this angle gets ADC
180 - 47.928.... = 132.07
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