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Nonamiya [84]
3 years ago
7

Find the length of BC

Mathematics
2 answers:
jok3333 [9.3K]3 years ago
8 0

Step-by-step explanation:

Hey there!

From the given figure;

Angle CAB = 54°

Side AC = 39

To find: side BC

<em>Taking Angle CAB as reference angle;</em>

Perpendicular (p) = BC = ?

Base (b) = AC = 39

Hypotenuse (h) = AB

Taking the ratio of tan;

\tan( \alpha )  =  \frac{p}{b}

Keep value;

\tan(54)  =  \frac{bc}{39}

Simplify it;

1.376381*39 = BC

Therefore, BC = 53.678.

<u>Hope </u><u>it</u><u> helps</u><u>!</u>

Rudik [331]3 years ago
3 0

Answer:

53.68

Step-by-step explanation:

tan54 = bc/39

bc = 39tan54

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