A massive building, particularly in ancient Egypt, has a square foundation and four triangular sides that meet at a point and includes tombs. 2: a shape or structure composed of a polygon for the base and three or more triangles for the sides that join to form the top. 3a: a solid figure made up of polygons connected by their edges.

So, the answer is "a massive building with a square foundation and four triangular sides that meet at one corner and includes tombs."

This question was asked by William Smith during an exam given in 1829 at the University of Oxford, which at that time was the best university in the world. The candidate's name was Charles Darwin. He had just completed **his PhD thesis** on the geology of the island of South America and had some time before started work on his book about this subject called "The Voyage of the Beagle". During **his time** at Oxford Darwin met someone who would have **a major impact** on the development of his ideas about evolution: Robert Brown. The two men became friends and several years later when Darwin moved to London they kept in touch by letter. One day in 1837 Brown received from Darwin a piece of bone which he thought might be fossil evidence supporting the idea that animals evolve over time. However, it was not until after Darwin's death that scientists realized what the bone really was: a femur belonging to a species of animal called Megalosaurus.

A pyramid is a geometrical solid with a square base and four equilateral triangle sides; it is the most structurally secure shape for large-scale stone or masonry constructions. Pharaohs then added floors on top of the box to build stepped pyramids, resulting in bigger tombs. The Pyramid of Giza has three such floors.

In mathematics, a pyramid is a polyhedron that can be formed by taking **the convex hull** of a point and a line segment. A triangular pyramid is called a tetrakiskephalous (four-faced). When more than two faces are equal, it is called an oligoskelastic pyramid.

There are two types of pyramids: geometric and physical. A geometric pyramid has exactly four equal sides which are themselves equal to one another. A physical pyramid has sides that are not necessarily equal. A triangular pyramid is an example of a physical pyramid because it has only three equally sized sides. Another example is the piramide, which has **five unequal sides**.

The word "pyramid" comes from Greek πύραμα pyrámā ("with fire") because of its use in **ancient Egypt** to burn bones and herbs to produce perfume. It first appeared in English in 1598 when it was used to describe **any kind** of pyramid.

In science, geometry is the study of shapes and their properties.

A Pyramid as Defined by Children 1: a massive building, notably in ancient Egypt, with a square foundation and four triangular sides that meet at a point and includes tombs. 2: a form or construction composed of a polygon for the base and three or more triangles for the sides that meet at the top. The word "pyramid" comes from Greek pyramis, which means "maple tree".

As defined by Kids Dictionay, a pyramid for kids is a structure like one used to bury **dead people**. It has the shape of a pyramid with its bottom wider than its top. In time, this type of structure was also used as a temple, palace, or place of worship. Modern-day examples can be seen in countries where ancient Egyptian culture has been adopted. They are often used for **burial purposes**.

The word "mummy" is used to describe the remains of a person who has been buried in a pyramid for kids. Scientists have learned **many things** about pharaohs and their society by studying mummies. Also called **corpse pyramids**, these structures were used until about 500 AD for Egyptians to show respect by burying their most important people under the ground.

Why were pyramids built? That is an excellent question. People have wondered about this themselves since the first pyramids were built over 5,000 years ago. Some scientists say pyramids were built as places of worship, while others claim they were used for military purposes.

It features a polygon base and flat (triangular) sides that meet at a point (called the apex). When we hear the term "pyramid," we immediately think of Egypt's iconic pyramids. The Egyptian pyramids are square-based, however various forms of pyramids exist, each having a different polygon as its foundation. The word "prism" may also bring to **mind images** of clear glass or ice crystals, but here we are talking about a solid object made of many thin layers of glass or other material joined together.

In mathematics, a prism is a three-dimensional figure with flat faces and straight edges, which comes in **several varieties** depending on how it is shaped at the back. There are triangular prisms, rectangular prisms, cylindrical prisms, and more complex shapes derived from these basic forms. A pyramid is a type of prism where the three dimensions are equal: it has a height h, a base area B, and a volume V = B h. If we assume for the moment that the pyramid is symmetrical, then it can be shown that its volume is 2/3 of the volume of a cylinder with **the same base** and height as the pyramid.

The first known example of a prism was invented by Pythagoras around 565 BC. He called it a "pyramid" because it had a shape similar to a pyramid. Although both terms come from the same source, they have different meanings today.