Triangle ABC is an equilateral triangle.AD=10 What is the length of CD? Give your answer to the nearest whole number.

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1. Please type your subject in the School Subject box. Any other words, including obscure abbreviations, are likely to delay responses from a teacher who knows that subject well.

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2. The School Subject is NOT 10th grade. Is it math? If so, state that for a math teacher to help you.

Sra

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3. Do not know where D is. Needs more explanation.

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