Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. If you continue browsing the site, you agree to the use of cookies on this website. See our User Agreement and Privacy Policy.

Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. If you continue browsing the site, you agree to the use of cookies on this website. See our Privacy Policy and User Agreement for details.

Like this presentation? Why not share!

- Circle and its parts by Reynz Anario 7334 views
- Basic Concepts on Angles by Manny Macam 4475 views
- Similar Triangles Concept by wartschowk 5578 views
- Angles by Punita Verma 2997 views
- 1.5 Complementary and Supplementary... by Dee Black 1850 views
- Chapter 1 ( Basic Concepts in Geome... by papa smurf 842 views

4,491 views

4,235 views

4,235 views

Published on

No Downloads

Total views

4,491

On SlideShare

0

From Embeds

0

Number of Embeds

25

Shares

0

Downloads

67

Comments

0

Likes

2

No embeds

No notes for slide

- 1. CIRCLE
- 2. GROUP MEMBERS: NOOR KAMARIAH BINTI ALING 0914018SITI ‘AQILAH BINTI MAHYIDDIN 0918878
- 3. A circle is defined as the collection of all the points on a plane that are at equal distance from a given fixed point on the plane.This fixed point is called centre of the circle and the fixed distance is calledthe radius. A line segment joining two points on the figure is a chord. The following are examples of two chords.
- 4. -When a chord passes through the center,we call it a diameter. A diameter usually divides such figure into two equal halves. Each half is called a semi-circle-Half a diameter is called a radius.-In other words, 2 radii= diameter
- 5. CENTER AT THE ORIGINThe circle with centre (0, 0) and radius r has the equation: x2 + y2 = r2This means any point (x, y) on the circle will be "true" whensubstituted into the circle equation.
- 6. CENTER NOT AT THE ORIGINThe circle with centre (h, k) and radius r has the equation: (x − h)2 + (y − k)2 = r2
- 7. THE GENERAL FORM OF THE CIRCLEAn equation which can be written in the following form (with constants D, E,F) represents a circle: x2 + y2 + Dx + Ey + F = 0
- 8. Example:Find the centre and radius of the circlex2 + y2 + 8x + 6y = 0Sketch the circle.Answer:Our aim is to get the equation into the form: (x − h)2 + (y − k)2 = r2Group the x parts together and the y parts together: Complete the square on each of the x and y parts.
- 9. This is now in the format we require and we can determine the center and radius of the circle. So the centre of the circle is (-4, -3) and the radius is 5 units.Note that the circle passes through (0, 0). This is logical, since (-4)2 + (-3)2 = (5)2
- 10. Real life examples:-bicycle wheels- coins-dimes and pennies-CDs-MP3 players.
- 11. REFERENCEShttp://www.basic-mathematics.com/the-circle.htmlhttp://www.intmath.com/plane-analytic-geometry/3-circle.php#general

No public clipboards found for this slide

×
### Save the most important slides with Clipping

Clipping is a handy way to collect and organize the most important slides from a presentation. You can keep your great finds in clipboards organized around topics.

Be the first to comment