I need help on solving this, i don't really understand how to:(
In the triangle below, determine the value of a.

A. 4.09
B. 7.7
C. 4.7
D. 4.4

picture below

Question

I need help on solving this, i don't really understand how to:(
In the triangle below, determine the value of a.

	A.	4.09
	B.	7.7
	C.	4.7
	D.	4.4
 
picture below

anonymous · Answer

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anonymous · Answer

Do you know the cos, sin, and tan functions?

anonymous · Answer

@countrygal44 yeah, Sine Function:
sin(θ) = Opposite / Hypotenuse
Cosine Function:
cos(θ) = Adjacent / Hypotenuse
Tangent Function:
tan(θ) = Opposite / Adjacent

anonymous · Answer

Yep! Do you know which one you need to use?

anonymous · Answer

Not really.

anonymous · Answer

no i dont, im really confused. @countrygal44

anonymous · Answer

Give me about 15 minutes, hang on

anonymous · Answer

Okay.

anonymous · Answer

Ok, so notice where your given angle measure is

anonymous · Answer

does it make sense that you would use sin?

anonymous · Answer

Yes because, opposite and hypotenuse. right?

anonymous · Answer

Right again! So what would your equation be?