remove double sentence and adjust scale to scales.r (#9111)

diff --git a/docs/charts/radar.md b/docs/charts/radar.md
index 8aecced8945dca0eb6da2dc4186837ba01293185..fad17934c90e6f6ffefd9a88d9e88d9d4b263cb1 100644 (file)
--- a/docs/charts/radar.md
+++ b/docs/charts/radar.md
@@ -165,8 +165,7 @@ The interaction with each point can be controlled with the following properties:
 
 ## Scale Options
 
-The radar chart supports only a single scale. The options for this scale are defined in the `scale` property.
-The options for this scale are defined in the `scale` property, which can be referenced from the [Linear Radial Axis page](../axes/radial/linear).
+The radar chart supports only a single scale. The options for this scale are defined in the `scales.r` property, which can be referenced from the [Linear Radial Axis page](../axes/radial/linear).
 
 ```javascript
 options = {