## briana.img one year ago In the triangle below calculate the value of x

1. briana.img

Got 10.06404682 as my answer but doesn't fit

2. campbell_st

that's correct

3. briana.img

did sin57=x/12

4. campbell_st

5. Haseeb96

6. Haseeb96

well let me try to define it to you

7. mathstudent55

Take my advice: If @campbell_st tells an answer is correct, you can believe it's correct. A is the correct answer.

8. briana.img

omg

9. Haseeb96

you know that hypotensue is equal to x into sqrt2 as hypotenuse is given which is 12 |dw:1435961067163:dw|

10. mathstudent55

@Haseeb96 Perhaps you mean the ratio of the lengths of the sides is $$1 ~:~1~:~ \sqrt2$$ That is true of a 45-45-90 triangle. This is not such a triangle, so you need to use the sine function.

11. Haseeb96

okay sorry

12. mathstudent55

Also, if that were the case, x would be 8.49, not 11.85.