Answer :
these two triangles are similar, so their ratios are equal.
7.7 / 1.4 = x / 1, where x = the flagpole length
multiply by one and simplify
x = 7.7 / 1.4
7.7 / 1.4 = x / 1, where x = the flagpole length
multiply by one and simplify
x = 7.7 / 1.4