A vertical pole(AB) 6 feet long casts a shadow(CB) 55 inches long as shown in the attached image. Since the angle of elevation of sun is
. We hav to find the value of
.
Firstly, we will change the dimensions of pole(in feet) to the dimension of shadow( in inches) . So, that the dimensions of pole and shadow are same.
Since, 1 feet = 12 inches.
6 feet =
inches.
Now, let us consider the triangle ABC in the attached image,
We have to find

= 
= 1.309

Answer:
30
Step-by-step explanation:
m/6 = 5
Multiply both sides by 6:
m = 5 * 6 = 30
m/1 = m = 30.
30 * 0.05 + 1 = X
1.5 + 1 = X
2.5 = X
The light remains yellow for 2.5 seconds on a street with a speed limit of 30.