SOLUTION-:
GIVEN
BC = 4 CM
AD = 7CM
BE = 5CM
FIND
Length of AC
let's begin
[tex] \frac{1}{2} \times side \: \times height \: \\ \frac{1}{2} \times ac \times bd = \frac{1}{2} bc \times ad \\ \frac{1}{2 } \times 5 = \frac{1}{2} \times 4 \times 7 \\ ac = \frac{4 \times 7}{5} \\ \\ = \frac{28}{5} \\ = 5.6cm \\ \\ so \: we \: required \: \\ length \: of \: ac = 5.6 \\ therefore \: we \: get \: answer[/tex]
