Step-by-step explanation:
a a reflex angle is more than 180° but less than 360° so in this case the reference angle of 95 degrees we are going to take 360° - 95 degrees to get255°
Answer: 3
Step-by-step explanation:
Answer:
(D)9 divided by sin 60 degrees
Step-by-step explanation:
From the given figure, using trigonometry
![\frac{BC}{AB}=sin60^{{\circ}}](https://tex.z-dn.net/?f=%5Cfrac%7BBC%7D%7BAB%7D%3Dsin60%5E%7B%7B%5Ccirc%7D%7D)
Substituting the given values, we get
![\frac{9}{AB}=sin60^{{\circ}}](https://tex.z-dn.net/?f=%5Cfrac%7B9%7D%7BAB%7D%3Dsin60%5E%7B%7B%5Ccirc%7D%7D)
![\frac{9}{sin60^{\circ}}=AB](https://tex.z-dn.net/?f=%5Cfrac%7B9%7D%7Bsin60%5E%7B%5Ccirc%7D%7D%3DAB)
![AB=\frac{9{\times}2}{\sqrt{3}}](https://tex.z-dn.net/?f=AB%3D%5Cfrac%7B9%7B%5Ctimes%7D2%7D%7B%5Csqrt%7B3%7D%7D)
![AB=\frac{18}{\sqrt{3}}](https://tex.z-dn.net/?f=AB%3D%5Cfrac%7B18%7D%7B%5Csqrt%7B3%7D%7D)
![AB=10.4 feet](https://tex.z-dn.net/?f=AB%3D10.4%20feet)
Thus, The length of the support AB is 9 divided by sin 60 degrees.