Triangular protractor

[Sil68]

Hi,

I am designing a triangular angle gauge, with the angle finder/protractor running along the hypothenuse of the triangle, and the triangle consisting only of the outside rim.

The bare triangle looks like this

At every full 10° I would like to create a tick mark 1mm wide, 10mm long, 1mm deep; and at every 1° a tick mark 0.75mm wide, 5mm long, and 0.5 mm deep. These tick marks are supposed to originate from the junction of the two smaller sides to the triangle.

The resulting triangle would look like this

Try as I might, so far I failed at figuring this facilitating the lattice2 wb.

Any hints, any suggestions would be highly appreciated. :)

-- Sil68