diff --git a/readme.md b/readme.md
index 15e6bbd..126d663 100644
--- a/readme.md
+++ b/readme.md
@@ -4511,6 +4511,7 @@ Global constants, functions and modules. This file is used directly or indirectl
 | ```ellipse(xr, yr)``` | Draw an ellipse |
 | ```extrude_if(h, center = true)``` | Extrudes 2D object to 3D when ```h``` is nonzero, otherwise leaves it 2D |
 | ```hflip()``` | Invert children by doing a 180° flip around the Y axis |
+| ```right_triangle(width, height, h, center = true)``` | A right angled triangle with the 90° corner at the origin. 3D when ```h``` is nonzero, otherwise 2D |
 | ```semi_circle(r, d = undef)``` | A semi circle in the positive Y domain |
 | ```translate_z(z)``` | Shortcut for Z only translations |
 | ```vflip()``` | Invert children by doing a 180° flip around the X axis |
diff --git a/tests/global.scad b/tests/global.scad
index e987814..b3ba956 100644
--- a/tests/global.scad
+++ b/tests/global.scad
@@ -25,6 +25,9 @@ module globals() {
 
         translate([30, 0])
             ellipse(15, 7);
+
+        translate([50, 0])
+            right_triangle(10, 20, 0);
     }
 }
 
diff --git a/tests/png/global.png b/tests/png/global.png
index 3dd6641..60d45dd 100644
Binary files a/tests/png/global.png and b/tests/png/global.png differ