- Someone measured the strike and dip of a plane to be 333 and 42$^{\circ}$ NE.
- Calculate the dip direction and the pole to the plane from the strike and dip.
- Plot the trace of the plane on an equal area net.

[Hint: look at Lecture 21 for how strike and dip works.]

Someone measured a bunch of geomagnetic directions with a mean inclination of 33 $^{\circ}$ declination of 12$^{\circ}$ and a circle of 95% confidence of 15$^{\circ}$.

Plot the mean direction as a solid red triangle in an equal area diagram

- Plot the circle of confidence as blue dots
- Calculate the antipode of the mean direction (the direction 180$^{\circ}$ away with the opposite inclination).
- Plot the antipode as a white triangle with a black edge.

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