Question

∆ABC and ∆DEF are equilateral triangles, A(∆ABC) : A(∆DEF) = 1 : 4. If AB = 4, then what is the length of DE?​

Answer 1

Answer:

4

Step-by-step explanation:

A(∆ABC) : A(∆DEF) = 1 : 4

AB=4

Using the ratio,

AB=4DE

4=4DE

1=DE

Therefore,DE=1