xcel VBA Chart counting and formatting

Question

I want to develop a macro that counts the number of charts inside a specified range and then takes different actions based on the number. How would I change activesheet.chartobjects.count such that it only counts within a range rather than throughout the entire sheet?

Here's the skeleton of my code.

Sub chrt_chck()
    Dim rng As Range
    Dim x As Long
    Set rng = Range("A1:F10")
    x = ActiveSheet.rng.ChartObjects.Count
    
    If x > 1 Then
    'select and delete all charts in range
    End If
    
    If x = 1 Then
    'select that chart and update format
    Else
    'create chart and set format
    End If
End Sub