Are they similar? ET
1) Use the angles 
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.
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.