2 years ago

What is the length of MN ?

Mathematics

1 answer:

solniwko [45]2 years ago

4 0

Answer:

C. 4

Step-by-step explanation:

Using the Law of Sines,

sinA / a = sinB / b

Here,

A = 63°
a = x + 8
B = 63°
b = 3x

Solving :

sin63°/x + 8 = sin63°/3x
x + 8 = 3x
2x = 8
x = 4

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