Question

triangle ABC and triangle fed are equilateral triangle if area of triangle ABC and area of triangle d e f is equal to one has two and a b is equal to 4 then what is the length of DE​

Answer 1

Answer:

Step-by-step explanation:

triangle abc is equilateral triangle

triangle def is also an equilaterail triangle

so both are similar triangle

for two similar triangles

area directly proprtional to side^2

ratio of area 1:2

side ratio. 1:sqrt(2)

ab = 4

De = 4sqrt2