Question

TriABC is similar to DEF. If AB=4 cm, BC=3.5 cm, CA=2.5 cm and DF=7.5 cm, then the perimeter

Answer 1

perimeter of triangle= sum of all sides
 perimeter = ab + bc + ca
                  =   4 + 3.5 + 2.5   
                  =   7.5 + 2.5
                  =   10cm
 so, perimeter is 10 cm

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