M. O and N are three non-collinear points. I is the midpoint of (OM) and J is the midpoint of [ON]
1°) Construct the parallelogram JOIE.
2") Prove that the three points M. E and N are collinear and deduce that E is the midpoint
of [MN]
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step-by-step explanation:

a

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,

yes.. it's proven to be 36.