Question

Let triangle ABC~triangle DEF and their areas are 64cm²and 121cm² respectively. If EF=15.4cm,find BC

Answer 1

BC is 11.2 cm ............

Answer 2

We know that in two similar.triangles:

Area of 1tr/ar of 2 tr=Corresponding side²/corresponding side²

Area ABC÷Area DEF=BC²÷EF²

64/121=BC²/15.4

BC²=0.81

BC=0.9