Second, the characteristics of the same side inner angle:
1. On the same side of the section line;
2, sandwiched between two straight lines;
3. The sectional view of the same side inner angle is U-shaped.
3. Theorem and inverse theorem of the same side internal angle:
Theorem:? The two straight lines are parallel and complementary to each other. The sum of complementary angles equals 18
Inverse theorem:? Determination of parallel lines: the inner angle of the same side is complementary, and the two straight lines are parallel.
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What is the definition of the inner angle of the same side?
What are the concepts of the same angle, the inner angle of the same side and the inner angle of the same side?
1. Two straight lines A and B are cut by the third straight line C (or the intersection C of A and B), and on the same side of the cut line C, the angles on the same side of the two straight lines A and B are cut. We call these two angles the congruence angle. ∠1 and∠ 5 in the figure are a set of conformal angles. 2. Two parallel straight lines are cut by a third straight line, and the two angles are on both sides of the cut line and sandwiched between the two cut straight lines. A diagonal with such a positional relationship is called an inscribed angle. ∠4 and∠ 6 in the figure are a set of internal angles. 3. Two corners where two straight lines are cut by the third straight line, on the same side of the cut line and within the cut line are called the same side inner corners. The inner corner of the same side, "same side" refers to the same side of the third straight line; "Inside" means between two straight lines that are cut. ∠3 and∠ 6 in the figure are a group of internal angles on the same side.
67 Zan 84 Browse 219-11-5
What is a homolateral internal angle
Homolateral internal angle means that two lines are cut by a third line, and the angle formed by one side of the third line and two lines, for example, A and B are cut by C in the above picture, and ∠1 and ∠2 are called a pair of homolateral internal angles. I remember that the mathematics textbook in the second volume of the first grade of the Peking University Edition will hopefully help you
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What is the congruent angle, the inner angle and the inner angle on the same side
? Two straight lines are cut by the third straight line, and on the same side of the cut line, the angles of this positional relationship are called congruent angles. They are congruent. 2. Two straight lines are cut by the third straight line, and the two angles are on both sides of the cut line and sandwiched between the two cut straight lines. A diagonal with such a positional relationship is called an inscribed angle. The inscribed angles are ∠3 and ∠5,∠4 and ∠6. 3. Two straight lines are cut by the third straight line, between the two straight lines, and ∠4 and ∠5
5 Zan 16 Browse 219-12-16
What is the same side internal angle
It's easy to understand that the same side means one side, and the definition is not very easy to understand. Two corners where two straight lines are cut by a third straight line, which are on the same side of the cut line and within the cut line, are called the same side inner corners. The inner corner of the same side, "same side" refers to the same side of the third straight line; "Inside" means between two straight lines that are cut. You can understand from the picture that
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