9-1 Exploring Circles Objectives: To identify and use parts of circles. To solve problems involving the circumference of a circle.

Slides:

Advertisements

Similar presentations

C=π d C=2πr r=½d d=rx2 A=πr² The diameter is the longest chord. The ratio of the circumference is always …. π is a Greek letter. π can also.

Advertisements

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

10.1 Circles and Circumference

10.1 Tangents to Circles.

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.

1 Spheres A sphere is formed by revolving a circle about its diameter. In space, the set of all points that are a given distance from a given point, called.

Unit 6 Day 1 Circle Vocabulary. In your pairs look up the definitions for your vocabulary words.

M5G2 – Students will understand the relationship of the circumference of a circle, its diameter, and pi (pi ≈ 3.14)

11.7 Surface Area and Volume of Spheres. Objectives Find the surface area of a sphere. Find the volume of a sphere in real life.

6.1 Use Properties of Tangents

The Area and Componants of Circles. Free powerpoint template: 2 Circles Vocabulary pi or π (pi) Π is a mathematical constant with.

Lesson 10.1a Circle Terminology.

9.1 – 9.2 Exploring Circles Geometry.

Circles: Area and Circumference. Definitions Circumference: Distance around the outside of a circle Area: How many squares it takes to cover a circle.

3.4 Area and Circumference 1 Circle A circle is a plane figure that consists of all points that lie the same distance from a fixed point. The fixed point.

Lesson 8-1: Circle Terminology

Math Circumference of Circles & Area of Circles. Vocabulary A circle is the set of all points in a plane that are the same distance from a given point,

Circles and Circumference Lesson 9-5. Vocabulary A circle is a plane figure that consists of a set of points that are equidistant from a given point called.

Circles and Circumference. Vocabulary A circle is a plane figure that consists of a set of points that are equidistant from a given point called the center.

10-1 Circles Page 697. A circle is the set of all points in a plane that are a given distance from a given point in that plane. The given point is the.

Chapter 9 Section 1 Exploring Circles.

Circle Geometry.

Pi Video. Vocabulary 1. Circle – a set of points equidistant from a given point. 2. Center- a given point from which all points are the same distance.

Lesson 8-1: Circle Terminology

Section 10-1 Tangents to Circles. Circle The set of all points in a plane that are equidistant from a given point (center). Center Circles are named by.

Tangents, Arcs and chords, basic terms Section 9-1.

Circles Chapter 12.

10.1 Circles. Definition: Although all circles have the same shape, their sizes are determined by the measures of their radii. Two or more coplanar circles.

Circumference and Area: Circles

- Segment or distance from center to circle. Objective - To find the circumference of a circle. Circle - The set of points that are equidistant from a.

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

Chapter 10: Circles.

Brought to you by powerpointpros.com

Circles Lesson Vocabulary A circle is a plane figure that consists of a set of points that are equidistant from a given point called the center.

March 12, Trace the circle in your spiral. What is the distance around it?

A circle is a closed curve in a plane. All of its points are an equal distance from its center.

LESSON 7.6 AREA AND CIRCUMFERENCE OF CIRCLES OBJECTIVE: To use formulas for the circumference and area of circles.

6.9 Surface Area and Volume of Spheres Performance Exam: TOMORROW *You will get the review after notes*

Mrs. Planavsky 4 th Grade.  Find the circumference of a circle  Find the measurement of a diameter of the circle.

Circumference Lesson #33. What is Circumference? The distance around the outside of a circle is called the circumference (essentially, it is the perimeter.

SPI I CAN identify parts of a circle. I CAN find the circumference and area of a circle.

Geometry Chapter 9 Section 1 Circles. Circle The set of all points in a plane that are a given distance from a center point Radius a line segment from.

Circle Basics Central Angles

10-1Circles and Circumference You identified and used parts of parallelograms. Identify and use parts of a circle. Solve problems involving the circumference.

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.

Circles and Circumference. Vocabulary A ________is a plane figure that consists of a set of points that are equidistant from a given point called the.

Circles and Amount of Turn

9-8 Parts of Circles Course 1 Warm Up Warm Up Lesson Presentation Lesson Presentation Problem of the Day Problem of the Day.

Going Around in Circles!

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.

EQ: How do you find the circumference of a circle? Lesson 4-6 Circumference pp Vocabulary to watch out for this lesson: Circle Center Diameter.

10.1 Tangent Properties to a Circle. POD 1. What measure is needed to find the circumference or area of a circle? 2. Find the radius of a circle with.

By Renikki Alexander IDT 7062 Let’s Listen to the Circle Song "πr 2 sounds like area to me and when I need circumference I'll use πd."

9.3 Circles Objective: Students identify parts of a circle and find central angle measures.

Entry Task Circles and Arcs What is a circle? Circle The set of all points in a plane that are the same distance from a given point (this point.

Circles – Segments and Circumference Circle – The set of all points in a plane a given distance from a given point (the center). Circles are named by their.

Circles and Arcs. General Vocabulary: CIRCLE: the set of all points equidistant from a given point called the CENTER RADIUS: a segment that has one point.

Circles Vocabulary.

Geometry: Circles and Circumference (and Area)

Exploring Circles 9.1.

Lesson 8-1: Circle Terminology

Circle Vocabulary A Journey into the World of Circles…

Circles and Circumference

Circles and Circumference

Circles and Circumference

Presentation transcript:

9-1 Exploring Circles Objectives: To identify and use parts of circles. To solve problems involving the circumference of a circle.

Vocabulary Circle Center Radius Chords Diameter Circumference π (pi)

Vocabulary A circle is the set of all points in a plane that are a given distance from a given point in the plane. That point is the center of the circle.

Vocabulary A radius of the circle is a segment that one endpoint at the center of the circle and the other endpoint on the circle. All radii are congruent to each other.

Vocabulary A chord of a circle is a segment that has its endpoints on the circle. RF and KL are both chords of Circle P. KL is also a diameter of Circle P.

Circumference of Circle If a circle has a circumference of C units and a radius of r units, then C = 2πr.

Example 1 Find the circumference of a circle with a radius of 6.8 centimeters.

Example 2 Find the exact circumference of Circle P.