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Harlamova29_29 [7]
3 years ago
6

Given that x = 9.5 m and θ = 20°, work out AC rounded to 3 SF​

Mathematics
1 answer:
Ahat [919]3 years ago
3 0

Answer:

AC ≈ 10.1 m

Step-by-step explanation:

Using the cosine ratio in the right triangle

cos20° = \frac{adjacent}{hypotenuse} = \frac{BC}{AC} = \frac{9.5}{AC} ( multiply both sides by 9.5 )

AC × cos20° = 9.5 ( divide both sides by cos20° )

AC = \frac{9.5}{cos20} ≈ 10.1 m ( to 3 sf )

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