equilateral

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16 09, 2017

Babylonian math problem – West Asian science

By |2019-09-04T05:48:54-07:00September 16th, 2017|West Asia|2 Comments

A real Babylonian math problem on a clay tablet What math problems did Babylonian kids do? 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 [...]

29 07, 2017

What is a triangle? Simple geometry

By |2017-07-29T13:19:10-07:00July 29th, 2017|Math|0 Comments

This is an equilateral triangle. A triangle is any set of three points on a plane and the lines connecting those points to each other, as long as the three points aren't all on the same line (that would just be a line). Or, you could think of a triangle as the part of the plane that lies [...]

29 07, 2017

What is a hexagon? Simple geometry

By |2019-08-13T22:11:41-07:00July 29th, 2017|Math|0 Comments

This is a hexagon. See, it has six sides that are all the same length. Definition of a hexagon 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 this shape measure 720 degrees [...]

29 07, 2017

Equilateral triangle – Simple geometry

By |2019-05-30T20:07:26-07:00July 29th, 2017|Math|0 Comments

This is an equilateral triangle. What makes a triangle equilateral? 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. What is a triangle? What are angles? All [...]

28 07, 2017

Bilateral symmetry – Geometry

By |2019-02-14T07:17:30-07:00July 28th, 2017|Biology, Math|0 Comments

A butterfly has bilateral symmetry. Thanks to Wikimedia Commons What is bilateral symmetry? A shape has bilateral symmetry when it is the same on both sides of a line drawn down the middle. Are humans symmetrical? Venus of Lespugue, ca. 25000 BC, now in the Musee du Quai Branly, Paris You [...]

27 07, 2017

What’s an angle? Geometry made simple

By |2017-07-29T10:01:22-07:00July 27th, 2017|Math|0 Comments

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 [...]