All Angle Pairs

Learn to recognize linear angle pairs.

Name is Brian Mclogan and I make free maths video to help pupils understand maths better. As I teach, I make video during the course of the morning so that my pupils can have help doing their assignments, and an additional source as they learn for their tests and quiz questions.

Understanding that many pupils are struggling with mathematics, I want to improve pupils' accessibility to good training. To be a free on-line mentor for all pupils I cannot have in my schoolroom. The provision of free tuition and free maths video is really what motivates me to make more video.

Concurrence

Attempt to draw an oblique point at A or B. Note that if the PQ and RS line are similar, the two corresponding corners are the same. With reference to the above illustration, the transverse AB intersects the two PQ and RS axes and forms points of intersection at points F and F. When the two axes are aligned in line, the four corners around F and around F are the same, resulting in four pairs of corresponding corners.

Click "Next Angle Pair" in the above illustration to view each couple in turn. When the transverse intersects (as usual) over straight line, corresponding angle have the same dimension. If you move the points A or B in the above illustration, the two corresponding angle points always have the same dimension.

Click "Next Angle Pair" in the above illustration to view all four sentences of the corresponding angle in succession. When the transverse runs over non-parallel axes, the corresponding angle has no particular relation to each other. The only thing we can say is that each angle is just the corresponding angle to the other.

Dragging the point P2 or P2 makes the line unparallel. If you move A or D, you will see that the corresponding angle has no special relation to each other.