3 years ago

I don’t know the answer

Mathematics

2 answers:

julia-pushkina [17]3 years ago

8 0

12.09 ...........................

Sunny_sXe [5.5K]3 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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