Question

3. AABC and ADEF are
equilatesial triangles.
ACAABC) ACADEF)=1:3 It A13=9 tind D'E.​

Answer 1

Answer:

ΔABC∼ΔDE

ΔABC=16cm^2

ΔDEF=25cm^2

BC=2.3cm

EF=?

Ratio of area is equal to square of ratios of its corresponding sides.

Hence,ΔABC/ΔDEF=(BC/EF)^2

16/25=2.3×2.3/EF^2

EF=√8.265625

∴ EF=2.875cm

Step-by-step explanation:

Hope it helps.

Answer 2

Question:

∆Abc and ∆Def Are Equilateral Triangles, a (∆Abc) : a (∆Def) = 1 : 2 If Ab = 4 Then What is Length of De?

Answer:

$4\sqrt{2}$

Step-by-step explanation: