Like,
Try using the boundary blend feature (see attached WF 2.0 model). Just
select the triangular base sketch and point (2 curves) in direction 1, leave
direction 2 blank. I defined the top point at a set distance from the base
plane. However, you could use construction geometry in the sketch or
equations (relations) to define the height.
If you need a solid, the surfaces will need to be merged and solidified as
shown in the model.
Regards,
Chris Thompson
Appian Way Technologies LLC
Powell, Ohio 43065
www.appianwaytech.com
(614) 595-3751