Shop › 16 mm Scaled Triangle Image 1 of 2 Image 2 of 2 16 mm Scaled Triangle £1.00 Useful 16 mm scaled triangle, 60 / 30 degrees marked in scaled ft. Good for line side and drawing. Quantity: Add To Cart Added! Useful 16 mm scaled triangle, 60 / 30 degrees marked in scaled ft. Good for line side and drawing.