△ABC and △DEF are similar such that 2AB=DE and BC=8cm. Find EF.
A
4cm
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B
8cm
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C
16cm
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D
12cm
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Solution
The correct option is C16cm Given that △ABC∼△DEF. If two traingles are similar then their corresponding sides are proportional. EFBC=DEAB EF8=2ABAB=2 EF=2×8cm EF=16cm