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The Triangle and Chapter 6
THE TRIANGLE AND ITS PROPERTIES 115 6.3 ALTITUDES OF A TRIANGLE Make a triangular shaped cardboard ABC. Place it upright on a table. How ‘tall’ is the triangle? The height is the distance from vertex A (in the Fig 6.4) to the base BC. From A to BC, you can think of many line segments (see the next Fig 6.5).
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