Question

What is the length of BC¯¯¯¯¯ ?
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​ BC =

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Answer 1

Is it 54

Answer 2

In between BD and DC we see that they are marked the same which would indicate that the two lengths are equal to each other....

So...

Answer 3

So BD and DC are equal to each other....

Now we know that \(\Large{BD+DC=BC}\) So lets substitute....

\(\huge{18+18=BC}\)

Answer 4

36