the length of the ribbon is 24 ft
in the equilateral triangle all the side has equal values,
let the side is 'a'
then
a + a +a = 24
3a = 24
a = 24/3
a = 8 ft
now we convert feet into inches
we know that 1 ft = 12 inches
so in 8 ft
8 x 12 = 96 inches.
so the side of the triangle is 96 inches.