Question

# ΔABC∼ΔDEF such that ar (ΔABC) = 64 cm2 and ar (ΔDEF)=169cm2. If BC = 4 cm, find EF.

Open in App
Solution

## Since triangle ABC is similar to triangle DEF. Therefore(Area△ABC)(Area△DEF)=BC2EF2 Because the ratio of area of two similar triangles is equal to the ratio of square of their corresponding sides. 64169=42EF 6∗16964 EF = 42.25 cm

Suggest Corrections
2