glitterinmycake23 glitterinmycake23

04-12-2018
Mathematics

contestada

what is the answer please

what is the answer please class=

Respuesta :

jimrgrant1 jimrgrant1

04-12-2018

Answer:

12.9 cm ( nearest tenth )

Step-by-step explanation:

sin 40° = [tex]\frac{b}{20}[/tex] ( multiply both sides by 20 )

20 × sin 40° = b, hence

b = AC = 20 × sin 40° = 12.9

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