Answer:
The painting is 42.13 feet above the platform
Explanation:
Refer the attached figure .
A particular painting forming an angle of 50 degrees with a camera platform .
∠ABC = 50°
We are also given that the light is 55 feet from the wall where the painting hangs
i.e. AB = 55 feet.
Now we are required to find how high above the platform is the painting. i.e. AC
So, we will use trigonometric ratio :
![sin\theta = (Perpendicular)/(Hypotenuse)](https://img.qammunity.org/2020/formulas/mathematics/middle-school/8mj4m1ftbxc7xvpzdgohlpqu0r0x9289a2.png)
![sin50^(circ) = (AC)/(AB)](https://img.qammunity.org/2020/formulas/mathematics/middle-school/ps5cjk4g5l1f54as52wu97dvj6y7xo2y5z.png)
![sin50^(circ) = (AC)/(55)](https://img.qammunity.org/2020/formulas/mathematics/middle-school/yzpdf1h7w07ha7132ongc5nc98gn6fdlkc.png)
![0.766*55 = AC](https://img.qammunity.org/2020/formulas/mathematics/middle-school/4918dsbucxekdx99p1ociv8lff2t12y2mk.png)
![42.13= AC](https://img.qammunity.org/2020/formulas/mathematics/middle-school/savbgump277ua3zyjoa3nmbnzvwra1ylln.png)
Thus the painting is 42.13 feet above the platform