A library has 8,629 children's books. The librariary is ordering new shelves that each hold 1,000 books. He rounded the number of books to the nearest thousand to find how
many shelves to order. Which is the founded number the librarian used?

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hugo211

24.06.2020

Mathematics

Take the segment between the first two vertices to be the base of the triangle.

The length of the base is then 8 - 1 = 7.

The height of the triangle is then 6-2 = 4.

The area of the triangle is thus 7*4/2 = 14.

Hope that helps!

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A library has 8,629 children's books. The librariary is ordering new shelves that each hold 1,000 books. He rounded the number of books to the nearest thousand to find how many shelves to order. Which is the founded number the librarian used?