Although there are discussions similar to my problem I cannot find a specific solution and would appreciate any advice.

I have created a parametric triangle where the length of the base line is determined by the height of the wall and the angle beta……At first I used an expression with x.cos(y) and then I found the trig component so I used that instead.

What I don’t understand is why I cannot control beta below a value of about 30 ……the slider reads 6 but the angle is clearly greater than that.

I must be restricting something somewhere but I cannot see where.

Any help would be much appreciated

triangle.gh (11.4 KB)