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3 years ago

7

Find bc to the nearest tenth

1 answer:

egoroff_w [7]3 years ago

6 0

Answer:

BC ≈ 3.3

Step-by-step explanation:

Using the tangent ratio in the right triangle.

tan A = $\frac{opposite}{adjacent}$ , that is

tan20° = $\frac{BC}{AB}$ = $\frac{BC}{9}$ ( multiply both sides by 9 )

9 × tan20° = BC , then

BC ≈ 3.3 ( to the nearest tenth )

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