19..plz help meh?

Question

19. An airplane is flying 0.75 miles above the ground. If the pilot must begin a 4Degrees celicious to an airport runway, how far is the airplane from the beginning of the runway (in the ground distance) to the nearest tenth of a mile?

20. Explain why the tangent of 45degrees = 1.

Answer 1

PIE

Answer 2

10.7516 miles away, just do 0.75/(sin 4 degrees)

20.  because at 45 degrees both sides of the triangle (opp and adj) are the same length and tangent = opposite over adjacent.