As shown in the figure, the straight lines AB and CD are cut by the straight line EF. If the apposition angle ∠ 1 = ∠ 3, is the internal stagger angle ∠ 2 equal to ∠ 3? Is the inner corner ∠ 3 and ∠ 5 complementary? Please give reasons

As shown in the figure, the straight lines AB and CD are cut by the straight line EF. If the apposition angle ∠ 1 = ∠ 3, is the internal stagger angle ∠ 2 equal to ∠ 3? Is the inner corner ∠ 3 and ∠ 5 complementary? Please give reasons


∵∠ 1 = ∠ 3, ∵ ab ‖ CD, ∵∠ 2 = ∠ 3, ∵∠ 3 and ∠ 5 are complementary angles, and ∵ 3 + ∠ 5 = 180 °. Therefore, the same side inner angle ∠ 3 and ∠ 5 complement each other



As shown in the figure, if the lines AB and CD are cut by the line EF, ∠ 1 and ∠ 2 are ()
A. Appositive angle B. internal stagger angle C. ipsilateral internal angle D. antiparietal angle


It can be seen from the definition of figure and apposition angle that ∠ 1 and ∠ 2 are apposition angles



As shown in the figure, if the lines AB and CD are cut by the line EF, then the apposition angle is (), the internal angle is (), and the internal angle is ()


The picture is going to come up
In general, if two straight lines are cut by the third straight line, there are 4 pairs of equal position angles (8 in total), 2 pairs of internal stagger angles (4 in total) and 2 pairs of internal angles on the same side (4 in total)



The intersection of lines AB, CD and ef (that is to say, two lines AB and CD are cut by the third line) forms eight angles. How many groups of CO position angles are there in total, and the internal stagger angles are in the same side


Two lines are cut by the third line
There are four groups of isoangles
There are two groups of ipsilateral angles