A the sector radius 7cm
s
sectar
g
acude
of
substands angle 2700 at the centre,
calculate the tength a
length of the Arc
Area of secte
Il perimeter of sector de​

i think it is c hope that

i don't see any steps below, sweetheart

there is only one way to arrange all the eight relative to each other because they are not distinct. we have

now there are nine places to place an (and not more than one in one place).   because we have four symbols, we need to choose four of these nine places to insert an . order does not matter because the are not distinct.

thus there are 1 · c(9,4) ways, or, if we calculate it,

thus there are 126 ways to form such "words."