Question:

As shown in the figure below, how can I draw the sloping roof in part A?

Solution:

1) Draw a flat slab along the drawing sideline.

2) Click DRAW > Sloping > Batch Define by Slope.

3) According to the drawing, enter the info of each edge.

Related Article:

https://tas-helpcenter.cubicost.com/hc/en-us/articles/360021251872-Sloping