Stuart Reeves

05/07/2024 · Elementary School

4. The constants K and C for a certain instrument were 100 and 0 respectively. The ground makes a uniform slope of \( 12 \% \) from point A to point B . With the instrument at A and staff at B , readings were taken but due to obstruction in the line of sight, only the upper reading was recorded to be 1.915 m . If the vertical angle of the instrument was \( 6^{\circ} 43^{\prime} \) and height of instrument above A was 1.82 m , determine the horizontal distance between A and B .