Trigonometric Ratios
This lesson covers the identification of sine, cosine, and tangent of an acute angle. It explains how to apply these trigonometric ratios to solve problems involving distances and lengths in right-angled triangles. The relationship between the sides and angles of triangles is also discussed.
- 05:05 “is a right angle triangle given in this form. Let's have a right angle triangle given drawn down. The longer side which is the hypotenuse. The longer side is given to be what? 20. This opposite is 12. Opposite to the ang...”
- 13:29 “Now, 6 meter. The line of the side, line of side distance from point A to the top of the building, that's point B, is X. The line of side, the line at which it looks at the top of the building is X, which is unknown. Now...”
- 00:49 “ratio to finding distance and length? And three apply trigonometry ratio in solving what problems? Boops straight up. Now trigonometry ratio is applied on a triangle. You see that a triangle has three sides. So the right...”
Similar Shapes
This lesson covers the identification of similar shapes such as triangles, rectangles, squares, cubes, and cuboids. It explains the criteria for similarity, including proportional sides and equal angles. The lesson also includes methods for enlarging figures using scale factors and calculating lengt
- 14:22 “other side by this other side, so you could have a complete factor, factored out, so let's add the complete, so we have the other side, the torched side, that's from Africa 3, those add the torched sides, and what the to...”
- 10:17 “Every side, much the size is related. So, if I'm to find the scalar, check the two shapes and if they are find anything that is making them similar, meaning, find each of them. That's by dividing the longest side of the...”
- 13:32 “is given to be what, 0.5 divided by 5, like I said, you could multiply by 10 to take away this point, so that will give us automatically another 2.5, now, take note, the sides of the first, give me 2.5, the sides of the...”
Plane Figures and Their Properties
This lesson covers the identification and properties of various plane figures such as squares, rectangles, triangles, and circles. It explains how to calculate the area and perimeter of these shapes. The lesson also includes the classification of triangles their sides.
- 03:48 “All angles are equal. Each angle is 90 degrees, just like in the case of a rectangle. The diagonal lines bisect each other at the right angle, 90 degrees, and it has four lines of symmetry. Triangle classification accord...”
- 04:43 “A socialist triangle is a triangle with two equal sides and equal base angles. Two sides of an isosceles triangle are equal. The third side is not of the same angle or the same length as the remaining two sides. Two side...”
- 02:47 “Identifying plane shapes. Properties of a rectangle. The opposite sides are equal and parallel. It has equal angles. Each angle at 90 degrees. For a rectangle, each angle is at 90 degrees. This is 90 degrees, 90, 90, and...”
Introduction to Trigonometry
This lesson covers the basic concepts of trigonometry, including the measurement of angles and the definition of trigonometric functions. It explains the types of angles, the use of protractors for measuring angles, and the concept of quadrants in relation to angles. The lesson also introduces plane
- 02:20 “from one position to another about the fixed point on it. So we look at the term intercession of two lines. Let's call this line two and line one. When the two of them intersect at points o, they form an angle. This angl...”
- 00:02 “My name is John Ogbodo. I'll be looking at today, what's the called trigonometry, ratios of special angles and the topic is, or the subject is photo mathematics. So under this, we are going to understand and look at the...”
- 15:42 “So we have this convert, 37 degrees to 7 minutes, 38 seconds, into a radian measure. For it to do that, we need to find the relationship between each of them, which we have stated there. And let's see how we can do a rel...”