find the lengths of the missing sides in the triangle. Write your answers as integers or as decimals rounded to the nearest tenth LOOK IN COMMENTS FOR TRIANGLE

Question

hannahduhe · Answer

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anthonyym · Answer

Do you know sine, cosine, tangent? http://www.mathwords.com/s/sohcahtoa.htm

anthonyym · Answer

Or do you know the special 45-45-90 triangle?

hannahduhe · Answer

yes

hannahduhe · Answer

not the special 45-45-90

anthonyym · Answer

So to find X what would you use? sine cosine or tangent

hannahduhe · Answer

sine

anthonyym · Answer

Correct
Remember sin(angle) = opposite / hypotenuse
Now try plugging in your given info to get an equation to solve for the hypotenuse

hannahduhe · Answer

would the equation be $$\sin(45)\frac{ 7}{ x }$$

anthonyym · Answer

Close, you need the equals sign.
sin(45) = 7/x

anthonyym · Answer

Now rearrange to solve for x.

hannahduhe · Answer

$$7\times \sin (45)$$

anthonyym · Answer

No, try cross multiplying. You know what that is?

hannahduhe · Answer

kinda

anthonyym · Answer

https://www.mathsisfun.com/algebra/cross-multiply.html

hannahduhe · Answer

so how would i set the equation up

anthonyym · Answer

$$\sin(45) = \frac{ 7 }{ x }$$
x*sin(45) = 7|dw:1461627880534:dw|