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Posted by **linda** on Friday, January 7, 2011 at 5:03pm.

- math -
**Ms. Sue**, Friday, January 7, 2011 at 5:09pmV = 1/3 * base area * height

V = (1/3)(400)(21)

V = 2,800 cubic meters

- math -
**Ms. Sue**, Friday, January 7, 2011 at 5:10pm - math -
**mathematical mom**, Friday, January 7, 2011 at 5:18pmVolume of a pyramid is

1/3 times area of base times ht

base is 20(20)= 400 height=21

V= 1/3(400)(21)cubic units

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