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Babylonian math problem – West Asian science

By |2018-04-15T00:37:52+00:00September 16th, 2017|Science, West Asia|

A real Babylonian math problem on a clay tablet This is a real math problem assigned to Babylonian kids in Iraq about 1900 BC. See if you can do it! Here's the problem: Suppose you have two equilateral triangles, one inside the other. Can you figure out the area of the space between the two triangles? [...]

What is a hexagon? Simple geometry

By |2017-07-29T09:51:25+00:00July 29th, 2017|Math|

This is a hexagon. See, it has six sides. A hexagon is a flat shape, all in one plane, with six sides all of equal length. Each of the six angles measures 120 degrees, so the total interior angles of a hexagon measure 720 degrees (120 multiplied by 6). The hexagon can be cut into six equilateral [...]

Equilateral triangle – Simple geometry

By |2017-07-29T09:56:35+00:00July 29th, 2017|Math|

This is an equilateral triangle. Equilateral triangles have all three sides exactly the same length. Because their sides are the same length, the three angles of an equilateral triangle are also all the same size, so they're each one third of 180 degrees, or 60 degrees. All three angles of any equilateral triangle are 60 degrees, no matter how [...]

What’s an angle? Geometry made simple

By |2017-07-29T10:01:22+00:00July 27th, 2017|Math|

Two lines cross and form four angles Where any two lines cross each other, they form four angles. These angles are parts of a circle (as you can see from the green circle segments), so, like a circle, they have to add up to 360 degrees. If the two lines are perpendicular to each other, then the four angles [...]