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3 years ago

Help me in my trigonometry

Mathematics

2 answers:

satela [25.4K]3 years ago

7 0

Answer:

BC=53.68

Step-by-step explanation:

<u>Use tangent since you are finding the opposite side and given the adjacent side.</u>

tan(54)=BC/39

BC=53.68

kumpel [21]3 years ago

6 0

Answer:

Step-by-step explanation:

Using the tangent ratio in the right triangle

tan54° = $\frac{opposite}{adjacent}$ = $\frac{BC}{AC}$ = $\frac{BC}{39}$ ( multiply both sides by 39 )

39 × tan54° = BC, then

BC ≈ 53.68 ( to 2 dec. places ) → C

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