0
5
10
15
20
25
0
5
10
15
20
25
28
top line
right edge
6
5
8
5
point 9 × 7.5
12
1
12
10
18
Box
25 × 28 units
Slopes
5:6 tops and point · 5:8 bottoms
Heights
18 left · 10 right
Point
9 × 7.5, top line, right edge