BeepBot BeepBot

12-02-2017
Mathematics

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How do you work this out?

How do you work this out class=

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altavistard altavistard

26-02-2017

Note that because ABCD is a rectangle, AB = DC = 12. So all you have to do is to determine the length of ED and then add ED and DC together. Any thoughts regarding how to do that? Hint: triangle ADE is a right triangle, and the two acute angles are 30 and 60 degrees. Which is which?

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