Question

∆ABC~ ∆DEF such that are(∆ABC)=64cm² and ar(∆DEF)=169cm².If BC=4 cm find EF

Answer 1

64 / 169 = 4^2 / EF^2
64 / 169 = 16 / EF^2

Answer 2

64 / 169 = 4^2 / EF^2
64 / 169 = 16 / EF^2