∠ace is formed by two secants intersecting outside of a circle. if minor arc bd = 28°, minor arc ab = 112°, and minor arc de = 112°, what is the measure of ∠ace?

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,