Matter of Equations Classical Line Matter Class 8

Equation of Circle Tie - In everyday life of course you often find objects that form a circle and the circle is exactly tangent to other objects such as pulleys with a rope timba or railway wheel that tangent to the rail. In this post The Basic Mathematical Formula will invite you to study the tangent of the circle. The Circles tangent line is the lines that intersect a circle at a certain point. The tangent line of the circle must be perpendicular to the radius of the circle through the tangent point. Try looking at the image below:

Matter Equation Line Class 8 SMP "border =" 0 "height =" 289 "src =" https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiQ4rVPjUmwxNMwf6Dl8su5eiRkXB6fKqtd2D4OPUv9DVw_mX-CLkmilZR75MYPobd5v9erzgmTNNWoGEcsg1dxGnByRVDwDPv-FnYSxVQrWJ0CU_ZaW5dJQ8uxlfYVyQHSMx0s-eOolog/s320/Screenshot_2.jpg "title =" Matter Equation Matter of Class 8 Junior Class Circle "width </div> </div> <h3> Knowing the Nature of the Circle Tilt </h3> From the picture above can you determine what is called a tangent to the circle? Try you observe the <i> g </i> line Cut off the circle at points A and B, then note the line <i> h </i> which "cuts" the circle at point C. The <i> h </i> line is called the <i> tangent line </i> Its center is at the point O with the radius <i> r </i> Alui line <i> h </i> referred to as <i> point of tangency </i>. <br /> <br /> Look again at the line <i> g. </i> The cut-off point <i> g </i> to the circle exists at points A and B centered at O ​​forming an equilateral triangle so ∠ OAB = ∠ OBA. <br /> </i> When the line <i> g </i> with center A is rotated close to point A along the small arc of AB, it will be obtained that each displacement of point B, ie B 'will always apply ∠OAB' = ∠OB'A and angle AOB 'is getting smaller. When point B 'arrives at point A, the line <span style= g only pertains to the circle at point A and the angle formed between OA and line g is 90 0 or OA Perpendicular to the line g . At that time the line g becomes a tangent to the circle at point A.


From the above description, it can be concluded that:

a. The tangent of a circle is a line that intersects a circle at only one point.

b. The tangent line of the circle is perpendicular to the fingers drawn through its tangent point.

c. Through a point on a circle, it can be made exactly one tangent.

Source: Salamah. U. 2012. Logic With Mathematics 2. Solo: Platinum

That is the initial discussion of Equation of the Circle Tie . For further material will be discussed about How to Paint the Circle Tissue . Until we met again in the subject matter of math next.
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