Draw the Ionising Radiation Hazard Symbol Draw the ionising-radiation-hazard-symbol in an arbitrary colour on a distinctly coloured background. The specific proportions were published in the June 27th 1974 issue of the Federal Register of the US Government.

Details


As output, writing to a file (raster and vector formats are permitted) or displaying on the screen are both allowed.
You can draw just the border or the filled shape.
If you use raster images, you should take a parameter (or two) as input that lets you adjust the resolution of the output (e.g. width/height).
The background must at least have the size of the bounding box of the symbol but may be larger.
Outputting the unicode symbol ☢ is not sufficient.
The exact ratios of the used distances are given in following diagram (which was originally from here):




Related: Draw the ☣ (Biohazard Symbol)
BBC BASIC, 200 bytes

f=500
g=1/SQR(3)
CIRCLE FILLf,f,f
GCOL15
MOVE-100,f
MOVEf,f
PLOT85,f*(1-g),0
MOVE1100,f
MOVEf,f
PLOT85,f*(1+g),0
MOVEf*(1-g),2*f
MOVEf,f
PLOT85,f*(1+g),2*f
CIRCLE FILLf,f,150
GCOL0
CIRCLE FILLf,f,100


Somehow outgolfing Python, this works by drawing a large black circle, filling in the white triangular sections, drawing a central white circle and finally drawing the central black circle.