Thursday, March 19, 2015

405: Triangles

How much of the description is necessary in order to find the solution?


"an equilateral triangle and
three isosceles triangles
together make a rhombus

what must the angles in the rhombus be?"


Do we really need to know that it's a rhombus? Could we just be told it's a parallelogram?







source.

1 comment:

  1. I used consecutive angles, so the parallelogram information would be necessary. I'm not sure we need to know it's a rhombus to solve the problem, but it obviously has to *be* a rhombus (and we have to know it's a rhombus in order to construct the figure).

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