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Let DeltaABC~DeltaDEF and their areas be...

Let `DeltaABC~DeltaDEF` and their areas be , respectively , `64 cm^(2) and 121cm^(2)` . If EF = 15.4 cm, find BC

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The correct Answer is:
11.2 cm
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Delta ABC ~ Delta DEF and their areas are respectively 64 cm^(2) and 121 cm^(2) . If EF = 15.4 cm., then find BC.

Delta ABC - Delta DEF , Area of Delta ABC = 64 cm^(2) and area of Delta DEF = 121 cm^(2) . If EF = 15.4 cm , Find BC.

Knowledge Check

  • If DeltaABC~DeltaDEF, BC=3cm, EF=4cm , and Area of DeltaABC=54cm^(2) , then Area of Delta DEF is

    A
    `96cm^(2)`
    B
    `86cm^(2)`
    C
    `76cm^(2)`
    D
    `66cm^(2)`

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