In this picture, m< 4=m< 5=
55°
(a) show how to find
m< 3 ?
(b) explain how you know
m< 2.
5
(c) show how to find m< 1.

In the picture above.

Step-by-step explanation:

Using some identities for solution

I hope that it's a clear solution.

find out the value of b

step-by-step explanation:

answer:  

step-by-step explanation:

here x represents the height of the pole,

and, the height of the shadow of the pole is 12 feet.

also, the angle of elevation from the top of the pole is 40°,

therefore,

by the low of sine,

which is the required equation for finding the value of x,