Estonian task:

Lithuanian task:

Lithuanian students resolved the Estonian task:

Estonian original work:

In the middle of the paper draw a rectangle with the measurements of 4,7cm and 6,9cm. Then draw a right angled triangle on the right and left of the rectangle  so the triangle height is on the side of the rectangle and the triangles base is 2,8cm. Under the rectangle draw 2 new rectangles with on the left and right measurements of 2,5cm and 0,9 cm so they are  like legs. On the big rectangle draw a isosceles triangle be on the side of the rectangle and the side of the rectangle and the garbs of the triangle are 2,6 and 2,6.

Estonian students resolved the Lithuanian task:

Lithuanian original work: