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Novosadov [1.4K]
3 years ago
13

How do I find the answer?

Mathematics
2 answers:
Yuki888 [10]3 years ago
8 0

Step-by-step explanation:

Hi there!

The best way to approach this problem is Soh Cah Toa.

In this case you can use sine. sine is opposite over hypotenuse.

so sin(17)= b/15

then to solve for b you multiply 15 on both sides to get 4.4

PilotLPTM [1.2K]3 years ago
8 0

Answer:

Step-by-step explanation:

This question is an application of the sine law

Equation

b/sin(B) = c / Sin(C)

Givens

b = ????

B = 17

c = 15

C = 140

Solution

Keep in mind that this may not work.

b/sin(17) =   15 / sin(140)                          Multiply both sides by sin(17)

b = 15*sin(17)/sin(140)

  • sin(17) = 0.2924
  • Sin(140) = 0.6428

b = 15*0.2924/0.6428

b = 6.8233

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