Right Angle

right-angle(
origin: coordinate,a: coordinate,b: coordinate,label: nonecontent,name: nonestr,..style: style,
) 

Draw a right angle between a and b through origin origin

line((0,0), (1,2), name: "a")
line((0,0), (2,-1), name: "b")

// Draw an angle between the two lines
cetz.angle.right-angle("a.start", "a.end", "b.end",
  radius: 1.5)
```)

<Parameter name="origin" types="coordinate" > Angle origin</Parameter>
<Parameter name="a" types="coordinate" > Coordinate of side `a`, containing an angle between `origin` and `b`.</Parameter>
<Parameter name="b" types="coordinate" > Coordinate of side `b`, containing an angle between `origin` and `a`.</Parameter>
<Parameter name="label" types="none,content" default_value="&quot;•&quot;"> Draw a label at the angles "label" anchor.</Parameter>
<Parameter name="name" types="none,str" default_value="none"> Element name, used for querying anchors.</Parameter>
<Parameter name="..style" types="style" > Style key-value pairs.</Parameter>

## Styling
Styling is the same as the `angle` function.

## Anchors
Anchors are the same as the `angle` function