The switch element (2) is formed from a turnable flap section (4) with a cross section formed from a chord of a circle, with plates (6) having their bearing on the side of the wall (5) of the pipe line. The turning axis is located at a distance from the chord (4a) of the ...
A scenario of 7 questions requiring the students to define the circle and its elements (center, radius, diameter, secant, chord, tangent) was arranged by the researchers and students were asked to respond these questions. Also, the students were asked to define the circle and its elements ...