How many significant figures are in $2.84$2.84?
$1$1 significant figure
$2$2 significant figures
$3$3 significant figures
$4$4 significant figures
How many significant figures are in $0.063$0.063?
How many significant figures are in $0.087700$0.087700?
A value has been rounded to giveĀ $54100$54100.