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Are they similar? ET

1) Use the angles Toolbar Image button to measure the angles of both triangles. 2) Drag the vertices of the triangles to make them similar. The pictures will be transformed accordingly.
J, K and L are free points, but you can enter in the input field, J=M' (or K=N', L=O') to make the triangles similar. Undo this step to free the points again.