triangle

Fun problems to solve...the solutions will appear in the next issue.

Heron’s Formula for Area of a Triangle...Cleverly used algebra in an old familiar formula for the area of a triangle in terms of its base and height enables the formula to be restated in terms of the sides of the triangle.
Find an account of the derivation by COMAC and a number crossword by by D.D. Karopady.

 

This article describes how graph sheets can be used to introduce the concept of area to children. It demonstrates, with concrete examples, how the concept of area can be applied to certain geometrical figures, such as squares, rectangles, triangles or parallelogram.

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