Question

Δ ABC व Δ DEF हेदोन्ही समभुज त्रिकोण आहेत. A (Δ ABC) : A (Δ DEF) = 1 : 2 असून AB = 4 तर DE ची लांबी काढा.

Answer 1

∆ ABC and ∆ DEF are Collateral triangle that is all the angles is equal to 60 degree triangle ABC and triangle DEF are similar triangles

AB\DE = BC\EF = AC\DF

A (equilateral triangle)√3\4 side^2

=A(∆ABC) \A(∆ DEF) =

√3\4 ×4^2 \ √3\4 a ^2

=4^2 \a^2 = 4 \ a

4\a= 1 \2 ...given

a=2×4

a=8

side DE = 8

Answer 2

Answer:

thank you Bhai for answering this question