Question

Can yoy help me with number 3? I do not understand the question.

Answer 1

The law of sines states that:

`(\sin\alpha)/(a)=(\sin\beta)/(b)=(\sin \gamma)/(c)`

where alpha is the opposite angle to side a, beta is the opposite angle to side b and gamma is the opposite angle to side c.

For the triangle given we notice that:

Angle x is opposite to side 2.5.

Angle 28° is opposite to side 3.

Therefore the expression to find x is:

`(\sin x)/(2.5)=(\sin 28)/(3)`