Far be it that I dare to correct an older and truly wiser lady than I (and definitely more lady) but I feel compelled to take you to task on your mathematical conversions.
When I went to school 2.3meters equalled 7.546feet, not 9.0 feet.
I know in these inflationary times one must expect an increase but ......9.0 feet?
No wonder you tripped up
(Ed. Whoops - still no improvement in my maths then....... Too late now.... I'm about five thirds of my way thru life already....)