All About Circles Circles are everywhere! OP is the radius of the circle.

Slides:

Advertisements

Similar presentations

1. 6 Circles (Part 1) 1. Circle Notes

Advertisements

A chord that goes through the center of a circle

Tangents to circles 10.1 pg595. Definitions Circle- the set of all pts in a plane that are equidistant from a given pt. Center- pt in the middle of the.

10.1 Tangents to Circles.

Lesson 6.1 Properties of Tangents Page 182. Q1 Select A A.) This is the correct answer. B.) This is the wrong answer. C.) This is just as wrong as B.

10.1 Use Properties of Tangents.  Circle - the set of all points in a plane that are equidistant from a given point.  Center - point in the middle of.

Circle. Circle Circle Tangent Theorem 11-1 If a line is tangent to a circle, then the line is perpendicular to the radius drawn to the point of.

Tangents to Circles Pg 595. Circle the set of all points equidistant from a given point ▫Center Congruent Circles ▫have the same radius “Circle P” or.

Section 10 – 1 Use Properties of Tangents. Vocabulary Circle – A set of all points that are equidistant from a given point called the center of the circle.

Geometry – Segments of Chords and Secants

Circle Vocabulary. Circle – set of all points _________ from a given point called the _____ of the circle. C Symbol: equidistant center C.

6.1 Use Properties of Tangents

8-1B Circles and Tangent Lines When you have a line and a circle in the same plane, what three situations are possible? What is a secant line? What is.

EXAMPLE 1 Identify special segments and lines

Circle Geometry.

Lesson 9.2A R.4.G.5 Investigate and use the properties of angles (central and inscribed) arcs, chords, tangents, and secants to solve problems involving.

10.1– Use Properties of Tangents of Circles. TermDefinitionPicture Circle The set of all points in a plane that are equidistant from a given point.

Chapter 10.1 Notes: Use Properties of Tangents Goal: You will use properties of a tangent to a circle.

 The tangent theorem states that if two segments are tangent to a circle and intersect one another, the length from where the segments touch the circle.

Chapter 10 Properties of Circles.

Pg 651. A chord is a line segment with each endpoint on the circle A diameter is a chord that passes through the center of the circle. A secant of a circle.

Lesson 11.1 Parts of a Circle Pages Parts of a Circle A chord is a segment whose endpoints are points on a circle. A diameter is a chord that.

 A circle is defined by it’s center and all points equally distant from that center.  You name a circle according to it’s center point.  The radius.

Lesson 7.3. If the diameter of a circle is 15 units in length, how long is the circle's radius?(answer in a decimal)

Circles Chapter 12.

Geometry 11-1 Circle Basics Divide your paper into eight boxes. Draw a circle in each box, but leave some room to write a definition.

Circle Proofs Allie Buksha Geometry Mr. Chester.

Chapter 10 Circles Section 10.1 Goal – To identify lines and segments related to circles To use properties of a tangent to a circle.

Circle : A closed curve formed in such a way that any point on this curve is equidistant from a fixed point which is in the interior of the curve. A D.

 A circle is defined by it’s center and all points equally distant from that center.  You name a circle according to it’s center point.  The radius.

Warm-Up Find the area and circumference of a circle with radius r = 4.

Circle Properties. Draw a Circle Draw a Chord Draw radii from ends of chord Draw lines from each end of line to meet on circumference a b Measure angles.

Warm Up Week 1. Section 10.1 Day 1 I will identify segments and lines related to circles. Circle ⊙ p Circle P P.

Review:labeled part Write the name of each of the circle E. B. C. A. D.

A radius drawn to a tangent at the point of tangency is perpendicular to the tangent. l C T Line l is tangent to Circle C at point T. CT  l at T.

10.3 Chords. Review Draw the following on your desk. 1)Chord AB 2)Diameter CD 3)Radius EF 4)Tangent GH 5)Secant XY.

Circles. Circle  Is the set of all points in a plane that are equal distance from the center. This circle is called Circle P. P.

circle - set of all points in a plane at a given distance from a given point in the plane.

Circles Modified by Lisa Palen. Definitions Circle The CENTER of the circle is the point that is the same distance to every point on the circle. The distance.

Circles Chapter 10 Sections 10.1 –10.7.

Circles, Circumference, and Area Section Circle: Definition: A circle is the locus of points in a plane that are a fixed distance from a point called.

 A circle is defined by it’s center and all points equally distant from that center.  You name a circle according to it’s center point.  The radius.

circle - set of all points in a plane at a given distance from a given point in the plane.

Circle – the set of all points in a plane a given distance away from a center point. A A circle is named by its center point. For example: Circle A.

Warm up ♥This will be graded in 10 minutes ° ° ° °

Circle Geometry.

Chapter 7 Circles. Circle – the set of all points in a plane at a given distance from a given point in the plane. Named by the center. Radius – a segment.

Copyright © Cengage Learning. All rights reserved. Circles 6 6 Chapter.

Tangent and Chord Properties

Lesson 23 Parts of a Circle

Lesson: Angle Measures and Segment Lengths in Circles

Chords, secants and tangents

Segments of a Circle Unit 4

Tangent and Chord Properties

Lines that Intersect Circles

Warm-Up #33 3. Find x. 1. What is the perimeter of a regular hexagon if one of the side is 10 inches. 2. Find x X = 36 degrees Perimeter = 60 units X =

Lesson 8-1: Circle Terminology

Angles in Circle Notes Unit 5 Day 2.

Segment Lengths in Circles

Segment Lengths in Circles

Unit 3: Circles & Spheres

6.6 Finding Segment Lengths.

Circles. Circles 10.1 Parts of a Circle Circle – set of all points _________ from a given point called the _____ of the circle. equidistant C center.

Segment Lengths in Circles

Section 7.2 Tangent Properties to a Circle

Presentation transcript:

All About Circles

Circles are everywhere!

OP is the radius of the circle

radius: distance f rom center of circle to any point on it.

Do circles have more than one radius? Yes! They have many radii!

The diameter= 2 times the radius AB is the diameter

diameter: the longest distance from one end of a circle to the other.

If OB is 8, what is the length of AB?

CD is a Chord !

chord: a line segment within a circle that touches 2 points o n the circle.

FZ is a Tangent

tangent of circle: a line perpendicular to the radius that touches ONLY one point on the circle

Angle OFC = 90 degrees !

line MR is a Secant

A s ss secant is a line intersecting a circle at t tt two points.

Time for a quiz…

Good Job!

Thank you Mrs. Guest-Johnson Copyright 2006