All announcements and mathematical activity in Andrey Pavlikov's Telegram: https://t.me/mathmsu Courses on the specialized Unified State Exam: https://3.shkolkovo.online/math-msu And don't forget to use PROMO CODES for a discount: -50% DISCOUNT on the Annual Course with the promo code SNOW-50 -25% DISCOUNT on a month with the promo code SNOW-25 VK Group: https://vk.com/hitman_math Tik-Tok: / hitman_math My Instagram: / andreypavlikov_math Courses on higher mathematics: https://mathstudy.online/highmath Homework on the topic of the video: https://forms.gle/2S51VkRaJRj2iZhf6 It is important to understand that the annual mathematics program cannot be mastered in either an hour or a day. But what can really be done quickly is to repeat what was previously studied. I can give an analogy with a walk in the forest. If you don't walk along some paths for a long time, they will start to become overgrown with grass. So my advice to you: from time to time, repeat what you have learned. Pay attention to what you are doing worse. Your results will be better because of this. Timestamps: NEW MARKING 7th grade geometry 0:00 The whole video in 16 seconds 0:16 There are two roads ahead of us 1:05 I set you a feasible task 1:52 What can really be done quickly 2:34 Unbelievable, but true 3:20 Sounds funny and sad at the same time 4:04 This science develops logic 4:50 This moment has come, let's take a textbook 5:30 Points, lines, segments 7:10 Hanging a line on the ground 8:10 Geometry is beautiful 8:22 Beam 9:24 Angle 11:28 Equality of geometric shapes 12:35 Comparison of segments and angles 14:52 Length of a segment 16:30 Units of measurement. Measuring instruments 17:55 Degree measure of an angle 20:05 Measuring angles on the ground 20:48 Adjacent and vertical angles 22:45 Perpendicular lines 23:53 Constructing right angles on the ground 24:26 Triangle 27:09 First sign of equality of triangles 28:40 Perpendicular to a line 30:27 Medians, bisectors and heights of a triangle 35:21 Properties of an isosceles triangle 37:13 Second sign of equality of triangles 38:06 Third sign of equality of triangles 39:10 Circle 41:03 Constructions with a compass and ruler 42:31 Constructing an angle equal to a given one 44:38 Constructing an angle bisector 47:13 Constructing perpendicular lines 50:13 Constructing the midpoint of a segment 52:40 Definition of parallel lines 53:53 Signs of parallelism of two lines 57:09 Practical methods of constructing parallel lines 58:26 On the axioms of geometry 1:00:52 The fifth postulate - the axiom of parallels 1:03:11 Theorems on the angles formed by two parallel lines and a secant 1:04:50 Angles with respectively parallel or perpendicular sides 1:06:47 Theorem on the sum of the angles of a triangle 1:09:17 Acute, right and obtuse triangles 1:10:45 Theorem on the relationships between the sides and angles of a triangle 1:12:15 Triangle inequality 1:15:51 Some properties of right triangles 1:18:35 Signs of equality of right triangles 1:21:17 Corner reflector 1:24:22 Distance from a point to a line. Distance between parallel lines 1:26:49 Constructing a triangle given two sides and the angle between them 1:28:11 Constructing a triangle given a side and two adjacent angles 1:29:21 Constructing a triangle given three sides 1:31:13 Learning geometry from scratch is not very difficult if #7thgradeinanhour #geometry #mathematics #mathematicianmgu Mathematics 7th grade Geometry Planimetry Atanasian Point Line Segment Midpoint of a segment Ray Angle Straight angle Right angle Acute angle Obtuse angle Equality of geometric figures Length of a segment Degree measure of an angle Adjacent angles Vertical angles Perpendicular lines Triangle First sign of equality of triangles Second sign of equality of triangles Third sign of equality of triangles Perpendicular Median Bisector Height Isosceles triangle Equilateral triangle Circle Constructions with a compass and ruler Construction problems Construction of an angle equal to a given one Construction of an angle bisector Construction of perpendicular lines Construction of the midpoint of a segment Parallel lines Signs of parallelism of lines Axioms of geometry Angles formed by two parallel lines and a secant Interior alternate angles Interior same-side angles Corresponding angles Sum of the angles of a triangle Acute triangle Right triangle Obtuse triangle Theorem on the relationships between the sides and angles of a triangle Triangle inequality Properties of right triangles Signs of equality of right triangles