A true bearing is an angle measured clockwise from the True North around to the required direction.
In bearings, the crosshair is drawn on the point where the bearing comes from.
First, notice that when starting from the North line and heading clockwise all the way to line PO, it passes by a straight line, which has an angle of 180°.
To find the true bearing of O from P, we can find the value of the remaining angle and add it to 180°.
Notice that angle NOP and angle SPO are alternate angles.
Since alternate angles have equal values, this means that angle SPO is also 117°
Finally, add the value of angle SPO to the value of a straight angle, which is 180°, to find the bearing of O from P.
Don’t forget to add T to the bearing to indicate that it’s true North.
OP
=
180°+117°
OP
=
297°T
OP=297°T
Question 3 of 5
3. Question
The given bearing of P from O is 052°T. Find O from P
A true bearing is an angle measured clockwise from the True North around to the required direction.
In bearings, the crosshair is drawn on the point where the bearing comes from.
First, notice that when starting from the North line and heading clockwise all the way to line PO, it passes by a straight line, which has an angle of 180°.
To find the true bearing of O from P, we can find the value of the remaining angle and add it to 180°.
Notice that angle NOP and angle SPO are alternate angles.
Since alternate angles have equal values, this means that angle SPO is also 52°
Finally, add the value of angle SPO to the value of a straight angle, which is 180°, to find the bearing of O from P.
Don’t forget to add T to the bearing to indicate that it’s true North.
