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24-02-2021
Mathematics

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Find BC please help!

Find BC please help class=

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Respuesta :

24-02-2021

Answer:

BC=23

Step-by-step explanation:

Use sine rule:

x/sinX=y/sinY

BC/sinA=AB/sinC

BC/sin61=9/sin20

BC=26.3142396015*sin61

BC=23.0149525338

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