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...”
- 01:33 “So trig is a very wide subject. Now, two major aspects of trigonometry are plane, trig and spherical trigonometry. And plane trigonometry is concerned with angles, triangles and other figures which lie on the plane. And...”
- 04:41 “So with this, we call this the quadrants. Four quadrants of the seco. We have the first quadrant. We have the second quadrant. We have the third quadrant and the fourth quadrant. So we have four quadrants, which we need...”
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.
- 04:14 “sine. Adjacent over hypotenuse for cause and opposite over adjacent for tan. You could apply to solve a right angle triangle. Now let's pick an example one. So we will have an idea of the o analysis and its application....”
- 02:29 “tan which is popularly called soca tua. Now how do we arrive at that? Peking the first one. Let's do an analysis of this triangle on the board. Now we have sine, sine theta. Sine theta is opposite over adjacent. We say o...”
- 00:00 “Hello, my name is Oyase, Sunday I'll be taking you mathematics for JSS3 and we have an interesting topic for today, which is trigonometry, an aspect of our measurement and geometry. And the question is what to be the foc...”