Point p and q are 24m North and 7East of point r respectively what is the bearing of a from p to the nearest degree with diagram

1 answer

To calculate the bearing from point P to point Q based on the provided coordinates, let's first visualize the points.

  1. Positioning the Points:

    • Point R is the origin (0, 0).
    • Point P is positioned 24 meters North of R. So the coordinates of P are (0, 24).
    • Point Q is positioned 7 meters East of R. So the coordinates of Q are (7, 0).
  2. Calculating the Bearing:

    • Bearing is typically measured clockwise from north.
    • The line from P to Q can be visualized in the Cartesian plane with P at (0, 24) and Q at (7, 0).
    • To find the angle, we can use the tangent function and trigonometric ratios.
  3. Finding the Angle:

    • The difference in the East-West (x-axis) direction from P to Q is 7 meters (east).
    • The difference in the North-South (y-axis) direction from P to Q is 24 - 0 = 24 meters (south).
    • We can determine the angle using the arctangent function:

    \[ \theta = \tan^{-1}\left(\frac{\text{opposite}}{\text{adjacent}}\right) = \tan^{-1}\left(\frac{7}{24}\right) \]

  4. Calculating the Angle: \[ \theta = \tan^{-1}\left(\frac{7}{24}\right) \approx 16.26^\circ \]

  5. Calculating the Bearing:

    • The bearing from North is measured clockwise. Thus, the bearing will be: \[ \text{Bearing} = 0^\circ + \theta = 0^\circ + 16.26^\circ \approx 16^\circ \]
    • Rounding to the nearest degree gives us a final bearing of approximately 16° from North.

Diagram

A simple description of the diagram:

          P (0, 24)
          |
          |
          |
          |______________ Q (7, 0)

In this diagram:

  • P is above on the y-axis (North), and Q is on the right on the x-axis (East).
  • The angle measured clockwise from the North at point P towards Q forms the angle we've calculated.

Final Answer

The bearing from point P to point Q is 16°.