Need help with 11 choices 18 cm 38.4 cm 16 cm 54 cm

Mathematics
Tutor: None Selected Time limit: 1 Day

Dec 10th, 2015

Thank you for the opportunity to help you with your question!

Hello, thank you. The length BC is 18cm. This is because of pythagoras theorem. I got the answer by squaring AB, then squaring AC and then calculated the square root of the difference.

Please let me know if you need any clarification. I'm always happy to answer your questions.
Dec 10th, 2015

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