To find the bearing from point $O$ to point $A$, follow these steps:

1. Bearings are measured clockwise from the north direction.
2. If point $A$ is located at an angle of 70° from the north in the clockwise direction, the bearing from $O$ to $A$ would be exactly this angle.

So, the bearing from $O$ to $A$ is:

$70^\circ$

If you have any questions or want more details, feel free to ask!

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Additional Related Questions

1. How are bearings used in navigation?
2. What is the difference between true north and magnetic north when calculating bearings?
3. How can we calculate a bearing if the angle is given from the south instead of the north?
4. How do bearings work in three-dimensional space?
5. What tools are commonly used to measure bearings?

Tip:

Always measure bearings from the north direction in a clockwise manner unless specified otherwise.