**Answer:**

Given,

∆ ABC ~ ∆ DEF.

The ratio of the areas of these triangles will be equal to the ration of squares of their corresponding sides.

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

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

**Answer:**

Given,

∆ ABC ~ ∆ DEF.

The ratio of the areas of these triangles will be equal to the ration of squares of their corresponding sides.