Respuesta :

The required angle m BAC = 45°.

In triangle ABC.
AC represents the foreman’s line of sight to the top of the landfill.
Landfill height is =BC

What is triangle?

The triangle is geometric shape which includes 3 sides and sum of interior angle should not grater than 180°

According to conditions angle b = 90°

The sum of angles of a triangle= 180°

That is a + b + c = 180

Therefore, c = a
        a = (180 - b)/2

           = (180 - 90) / 2
           = 90 / 2
           = 45 degrees.

Thus, the required angle m BAC = 45°


Learn more about triangles here:
https://brainly.com/question/2773823

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Answer:

m BAC = 35°

Step-by-step explanation:

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