Triangle inequality rule

We were working with area and construction of triangles with the 6th graders in Isaiambalam school initially children started to construct a triangle with compass on their note books. Then to make things a little interesting children were asked how they would do it in scratch.

They initially started to draw three sides and found out that is was only possible to do, when the user gave three sides and two angles. Then one of then came up with using the arc function. He first drew the base, then two circles with the radius as the other two sides. Now he got the intersection point,  by this time I was confused as of how to get the third point in scratch. The solution was tracing the distance from one circles center to the other circles circumference and when they meet to set a variable to the x and y location and that did it.

Link to scratch code : link to program

More work done by children at Isaiambalam School :

Shapes and angles with 5th grade



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