The answer would be 0.009321 (rounded)
complete would be 0.00932090545 which equals 7/751
<h3>
First Method:</h3>
<u>Using cosine rule</u>:
![\rightarrow \sf cos(30 ) = \dfrac{YZ}{12}](https://tex.z-dn.net/?f=%5Crightarrow%20%5Csf%20cos%2830%20%29%20%3D%20%5Cdfrac%7BYZ%7D%7B12%7D)
![\rightarrow \sf YZ = 12cos(30 )](https://tex.z-dn.net/?f=%5Crightarrow%20%5Csf%20YZ%20%3D%2012cos%2830%20%29)
![\rightarrow \sf YZ = 6\sqrt{3}](https://tex.z-dn.net/?f=%5Crightarrow%20%5Csf%20YZ%20%3D%206%5Csqrt%7B3%7D)
![\rightarrow \sf YZ = 10.4](https://tex.z-dn.net/?f=%5Crightarrow%20%5Csf%20YZ%20%3D%2010.4)
<h3>
Second Method:</h3>
<u>First find XY using sine rule</u>:
![\rightarrow \sf sin(30)=\dfrac{XY}{12}](https://tex.z-dn.net/?f=%5Crightarrow%20%5Csf%20sin%2830%29%3D%5Cdfrac%7BXY%7D%7B12%7D)
![\rightarrow \sf XY = 12sin(30)](https://tex.z-dn.net/?f=%5Crightarrow%20%5Csf%20XY%20%3D%2012sin%2830%29)
![\rightarrow \sf XY =6](https://tex.z-dn.net/?f=%5Crightarrow%20%5Csf%20XY%20%3D6)
Then use Pythagoras Theorem:
⇒ XY² + YZ² = XZ²
⇒ (6)² + YZ² = 12²
⇒ YZ² = 144 - 36
⇒ YZ = √108
⇒ YZ = 6√3
⇒ YZ = 10.4
2 because the X and 2 are being multipled at the top so im assuming thats what its going by
I believe that the answer is C
BISECTOR OF AN ANGLE
- plus/minus - is a -
- plus/minus + is a -
+ plus/minus a - is a +
+ plus/minus + is a +
- times/divided - is a +
- times/divided + is a -
+ times/divided - is a -
+ times/divided + is a +