- ABC - DEF- area of - ABC-64 cm2 and area of - DEF-121 cm2- If EF-15-4 cm- find BC-

Area of ABC / area of DEF #160; = BC / EF64 / 121 = BC / 15.4BC = (64/121 )* 15.4BC = 8.14 cm ...

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Relation between Areas and Sides of Similar Triangles

Δ ABC ∼Δ DEF,...

Question

$Δ A B C \sim Δ D E F$ , area of $Δ A B C = 64 c m^{2}$ and area of $Δ D E F = 121 c m^{2}$ . If $E F = 15.4 c m$ , find $B C$ .

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$Δ A B C \sim Δ D E F$ and their areas are respectively 64 $c m^{2}$ and 121 $c m^{2}$ . If EF = 15.4 cm, find BC.

Let and their areas be, respectively, 64 cm² and 121 cm². If EF = 15.4 cm, find BC.

Δ A B C \sim Δ D E F

64 c m^{2}

121 c m^{2}

Δ A B C \sim Δ D E F

64 c m^{2}

121 c m^{2}

$Δ A B C \sim Δ D E F$ such that ar $(Δ A B C)$ = 64 $c m^{2}$ and ar $(Δ D E F) = 169 c m^{2}$ . If BC = 4 cm, find EF.

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