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3 years ago

Which expression represents the approximate length of Line segment B C? use sines law

Mathematics

1 answer:

Harrizon [31]3 years ago

6 0

The expression is: a. StartFraction (3) sine (66 degrees) Over sine (38 degrees) EndFraction

Step-by-step explanation:

The Law of Sines is written as;

$\frac{a}{sinA} =\frac{b}{sinB}=\frac{c}{sinC}$

where a, b,c are sides of the triangle and side a faces angle A , side b faces angle B and side c faces angle C.

In this case,

Dividing side AB by sin 38° equals dividing side BC by sin 66°

$\frac{3}{sin38} =\frac{BC}{sin66} \\\\$

3/0.61566147532 = BC/0.91354545764

4.87280773645 = BC/0.91354545764

BC=4.87280773645*0.91354545764 =4.45153137359

Approximate length is = 4.5 and the expression is: 3 sine 66°/ sine 38°

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Law of sines :brainly.com/question/3617061

Keywords: expression, length, line segment

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