[" 1) "/_ABC" & ADEF are equilateral triangles,"(A(Delta ABC))/(A(Delta DEF))=(1)/(2)" ."],[" If "AB=4" then what is length of DE? "]

Delta ABC ~ Delta EDF and area (Delta ABC) : Area (Delta DEF)=1:4 . If AB = 7cm, BC = 8 cm then DF=?

Given two triangles ABC and DEF. If Delta ABC ~ Delta DEF, 2AB = DE and BC = 8 cm, then find the length of EF.

Given two triangles ABC and DEF such that DeltaABC ~ Delta DEF . Also, ar(DeltaABC)= 25cm^(2), ar (Delta DEF)= 64cm^(2) and AB=5cm . Then length of side DE is

If ABC and DEF are two triangles such that (AB)/(DE)=(BC)/(EF)=(CA)/(FD)=(3)/(4), then write Area (ABC):Area(DEF)

In Delta ABC and Delta DEF is (AB)/(DE) = (BC)/(DF) then they will be similar if:

In Delta ABC and Delta DEF , if AB = EF, BC= DE and CA = FD, then

AX and DY are altitudes of two similar triangles Delta ABC and Delta DEF . Prove that AX : DY = AB : DE.

AX and DY are altitudes of two similar triangles Delta ABC and Delta DEF . Prove that AX : DY = AB : DE.

AX and DY are altitudes of two similar triangles Delta ABC and Delta DEF . Prove that AX : DY = AB : DE.

If Delta ABC ~ Delta DEF and AB = DE, BC = 8 cm, then the value of EF ?