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mash [69]
2 years ago
6

I don’t know the answer

Mathematics
2 answers:
julia-pushkina [17]2 years ago
8 0
12.09 ...........................
Sunny_sXe [5.5K]2 years ago
5 0

Answer:

AC ≈ 12.9 cm

Step-by-step explanation:

Using the ratio

sin40° = \frac{b}{20}

Multiply both sides by 20

20 × sin40° = b, hence

AC = b = 20 × sin40° ≈ 12.9

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