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?


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).