The government on Tuesday discarded its one-size-fits-all food pyramid in favor of 12 different triangle-shaped guides, each geared to people's differing lifestyles and nutritional needs.

And historically, the topographical dimensions have been recognized as forming a triangular pyramid shape by scholars and scientists. I took this photo on March 19 on the eve of the spring equinox ...

Save guides, add subjects and pick up where you left off with your BBC account. The surface area of a pyramid can be calculated by adding the area of the base to the sum of the areas of the ...

And historically, the topographical dimensions have been recognized as forming a triangular pyramid shape by scholars and scientists.I took this photo on March 19 on the eve of the spring equinox ...