triangle

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Babylonian math problem – West Asian science

By |2019-02-07T18:57:36-07:00September 16th, 2017|Science, West Asia|

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 [...]

Geometry made easy!

By |2019-07-05T09:30:53-07:00July 29th, 2017|Math|

Geometry: This is an equilateral trangle. What is geometry? The simplest geometric idea is the point, and then the line, the plane, and the solid. Shapes like circles, squares, rectangles, and triangles are flat, and we can think of them as being parts of a plane, flat like a drawing. What is a point? What is a plane? From planes to solids All [...]

What is an isosceles triangle? Simple geometry

By |2017-07-29T10:02:57-07:00July 29th, 2017|Math|

This is an isosceles triangle. Isosceles triangles have at least two sides that are exactly the same length. This forces two of their angles to also be acute angles of exactly the same size. In this blue triangle, the two longer sides are the same length, which forces the two bottom angles to be the same size. If the [...]

Equilateral triangle – Simple geometry

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

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 [...]

Area of a triangle – Geometry

By |2017-07-28T00:05:09-07:00July 28th, 2017|Math|

Area of a triangle To figure out the area of a triangle, multiply the base by the height of the triangle, and then divide by two: (Base x Height)/2. That's because the height times the base gives you the area of a quadrilateral, and in this case it's the area of the quadrilateral made by putting together [...]