By: Mikolaj Pal - Cousino High School Sebastien Rivest - South Lake High School.

Slides:

Advertisements

Similar presentations

Radius- Is the edge to the middle of the circle. Diameter- It goes throw the whole center of the circle.

Advertisements

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

Aim: To understand and know the vocabulary for parts of a circle

10.1 Tangents to Circles.

PARTS OF A CIRCLE To understand and apply the vocabulary.

Diameter  Any line segment that passes through the center of the circle and has endpoints on the circle.

10 – 6E CIRCLES. Important formulas when dealing with circles: Circumference = diameter multiplied by pi or 3.14 C = Circumference = 2 multiplied by the.

Given three points of a circle: (-1,1), (7,-3), (-2,-6).

V. Martinez. We can give points names. Here there are many points.  A point is an exact location in space.

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.

Circumference of a Circle Math 10-3 Ch.3 Measurement.

Definition: A circle is the set of all points on a plane that is a fixed distance from the center.

Perimeter Rectangles, Squares, and Triangles Perimeter Measures the distance around the edge of any flat object. To find the perimeter of any figure,

Radius, Diameter, and Circumference of a Circle Lesson 7 (3 rd 6 Weeks) TEKS 6.6C.

Circles. A circle is the set of all points in a plane that are at a given distance from a center. What is it?

1.You will explain the definition of a circle, radius, chord, diameter, circumference and arc. 2.You will name and label the terms of a circle. 3.You will.

1. 2 Circle A circle is the set of all points that are the same distance from a given point called the center.

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

The outside of the circle is called circumference The circumference is the distance around the circle.

  investigate the relationship between the diameter and circumference of a circle.

Review Multiplying decimals: 3.2 x 5.12 Multiplying fractions and whole numbers: 5 x 2/3.

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.

The Circle Levels 5  8 Know the names of a circle’s features

Circle Geometry.

Chapter 12 Circles Vocab. 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.

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

A Circle is a closed plane figure in which all the points are the same distance from the center. F Center Circle F.

Extension #4A Geometry Math Vocabulary- Circles Assessment Anchor M5.B PA Academic Standard 2.9.5C Aligning with Pennsylvania Department of Education Assessment.

Bell Ringer. Circle Definition Circle : The set of points coplanar points equidistant from a given point. The given point is called the CENTER of the.

- 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.

Circumference and Diameter 1/31/2006. Circumference A circle is a shape with all points the same distance from the center. It is named by the center.

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

Unit 1 – Conic Sections Section 1.2 – The Circle Calculator Required.

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.

Section 6.2 – The Circle. Write the standard form of each equation. Then graph the equation. center (0, 3) and radius 2 h = 0, k = 3, r = 2.

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

Circle Terminology. Circle The set of points in a plane that are a fixed distance from a given point called the center of the circle.

Chapter 11.6 Surface Areas and Volumes of Spheres.

Parts of a Circle & Circumference Textbook page 516 IAN page 120.

By: Kay McInnis. Diameter DIAMETER is the distance across a circle passing through the center point.

Name these Features The distance from the center to the edge The distance from one side to the other passing through the center The distance all of the.

 A cylinder has two identical flat ends that are circular and one curved side.  Volume is the amount of space inside a shape, measured in cubic units.

Chapter 25 Circle Properties. Circles Circumference = Distance whole way round Arc = Distance round part of circle Radius = Line from centre to edge Diameter.

Circles Chapter 10 Sections 10.1 –10.7.

The midpoint of a circle is centre The line drawn from the centre to the circumference is … radius.

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.

Copyright © Cengage Learning. All rights reserved. 12 Geometry.

Objective: Solve equations using area circumference, diameter, and radius.

Lesson 8.7 Concept: How to find the circumference of a circle. Guidelines: *The diameter of a circle extends from one side of the circle to the other.

Surface Area and Volume of a Sphere Essential Question: How to find the surface area and volume of a sphere? Sphere – set of all points in space equidistant.

Circles Objective: SWBAT define a circle and name its parts.

Circles and terms related to them

Objectives Learn and apply the formula for the volume of a sphere.

Segments of a Circle Unit 4

Circles Geometry = 40 points.

Circles and Circumference

PARTS OF A CIRCLE.

CIRCLES Topic 10.2.

Unit 8 Circles.

Circumference and Area: Circles

PARTS OF A CIRCLE.

Unit 8 Circles.

Presentation transcript:

By: Mikolaj Pal - Cousino High School Sebastien Rivest - South Lake High School

The CCSS requires that all 7th Graders know:  The formulas for the area and circumference of a circle.  The relationships between the circumference and the area of a circle. 2

The center of a circle or sphere is the point in the very center of the circle. The radius will always be the same if the midpoint is correct. 3

The circumference of a circle is the distance around the circle. Usually the letter C is used for it in equations. 4

The radius is the distance from the center of the circle to the circumference. As long as the midpoint is correct, the radius will never change. 5

6

The diameter is the distance from one side of a circle to the other side through the center. The diameter is twice the distance of the radius. 7

Pi ( π ) is a number (approx. 3.14) that is the circumference of any circle divided by its diameter. Pi to ten places:

A chord is a line segment connecting a point of the circle to another in a circle. IT IS NOT A DIAMETER because it doesn’t pass through the center. 9

A secant is a line that connects two points of a circle like a chord, but it’s also a line that passes through the circle. 10

A tangent is a line that is perpendicular to the radius or diameter that just “touches” the edge of the circle. 11

The formula for a circumference can be developed in two ways. With D=diameter, the equation is C= π D. With R=radius, the equation is C= π (R*2). 12

13 Diameter = 8cm. π * 8cm. = cm. 2

The area of a circle is the space inside of the circumference. The common equation for the area of a circle is A= π r^2. Using the circumference it is A=C^2/4 π, and with a diameter it is A=( π /4) * D^2. 14

15

16

Circles are used in many places in real life including CD’s, Tires, and clocks. For these products to properly function, the manufacturer(s) must properly produce it to meet the diameter and circumference specifications that are required. 17

18

19

20 Diameter=12cm. Circumference: Area: Radius=6cm.

 and.ac.uk/HistTopics/1000_places.html and.ac.uk/HistTopics/1000_places.html  area.html area.html 