Circles Review Unit 9.

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

Circles. Parts of a Circle Circle A circle is the set of all points in a plane that are a given distance from a given point in the plane, called the.

Lesson 10.1 Parts of a Circle Today, we are going to…

Circle Jeopardy.

Aim: How do we find the measurement of angles formed by tangent, secants, and chords? Homework: Workbook pg 368 – 369 #’s 1, 4, 6, 7a Do now: find the.

The Power Theorems Lesson 10.8

Accelerated Math 2.  Two minor arcs are congruent if and only if their corresponding chords are congruent.

Circles > Formulas Assignment is Due. Center Circle: A circle is the set of all points in a plane that are equidistant from a given point called the center.

Chapter 10 Geometry Jeopardy

Angles in Circles Angles on the circumference Angles from a diameter

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

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

In your own words…… What is it called when we find the “space” inside a circle? What is the formula used to find the “space”? What is it called when we.

Introduction All circles are similar; thus, so are the arcs intercepting congruent angles in circles. A central angle is an angle with its vertex at the.

6.1 Use Properties of Tangents

Jeopardy Angle Relationships Circle Eqns Circle Vocab Areas of Sectors Misc. Q $100 Q $200 Q $300 Q $400 Q $500 Q $100 Q $200 Q $300 Q $400 Q $500 Final.

Are you ready? We heard you were going to make a few note cards - and then there might be a short quiz. Have fun!!

Lesson 8-1: Circle Terminology

9.1 Circles and Spheres. Circle: ______________________________ ____________________________________ Given Point:______ Given distance:_______ Radius:

Lesson 8-1: Circle Terminology

Section 9.5 INSCRIBED ANGLES. Inscribed Angle What does inscribe mean? An inscribed angle is an angle whose vertex is on a circle and whose sides contain.

10.1 – Tangents to Circles. A circle is a set of points in a plane at a given distance from a given point in the plane. The given point is a center. CENTER.

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

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.

 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.

6.3 – 6.4 Properties of Chords and Inscribed Angles.

Circumference Arc Radius Diameter Chord Tangent Segment Sector

Section 10.6 Equation of Circles

What’s a skey? Defining Circle Terms Use the examples and non-examples to write a good definition for each boldfaced term.

Radius diameter secant tangent chord Circle: set of all points in a plane equidistant from a fixed point called the center. Circle 4.1.

 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.

Arc Length and Sector Area. How do we get the fraction in these formulas? How many degrees are in a circle? Fraction = (central angle/360)

WARM UP 1) 2). Section 9.6 Other Angles OTHER Angles in a Circle You know two types of Angles: –Central angles –Inscribed angles FOUR OTHER TYPES 1)

Arc Lengths By the end of today, you will know about arcs and their measures and be able to do operations involving them.

Circle Vocabulary.

WARM UP Find the following measures.. Section 9.4 Relationships between Arcs and Chords.

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

M3U8D1 Warm Up x 120 4x Simplify each expression:

Properties of Cricles Part 1 Day 17. Day 17 Math Review.

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 Formula Drills!!!!!!!!!!. Circle Drill & Practice I’m going to ask you to remember some formula. When you think you know the answer, (or if you.

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: Arcs, Angles, and Chords. Define the following terms Chord Circle Circumference Circumference Formula Central Angle Diameter Inscribed Angle.

Circles Chapter 10 Sections 10.1 –10.7.

Sector of a Circle Section  If a circle has a radius of 2 inches, then what is its circumference?  What is the length of the arc 172 o around.

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

OBJ: SWBAT USE THE FORMULA FOR CIRCUMFERENCE, USE ARC LENGTHS TO FIND MEASURES AND SOLVE REAL-LIFE PROBLEMS Circumference and Arc Length.

The circumference & the circle. Elements of the circumference Centre (UK) / center (US)

Circle Geometry.

Warm Up Identify the parts of the circle 10 minutes End.

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.

10-7 Area of Circles and Sectors. REVIEW Circumference: The total distance (in length) around a circle. Arc measure: The measure of the central angle.

Circles Chapter 10 Sections 10.1 –10.7.

Circles Vocabulary.

Unit 2 Day 5 Circle Vocabulary.

Angle Relationships in circles

Sector Area and Arc Length in Circles

Unit 4: Circles and Volume

Lesson: Angle Measures and Segment Lengths in Circles

Circle Unit Notes AA1 CC.

Unit 6 Day 1 Circle Vocabulary.

Unit 6 Day 2 Circle Relationships.

Unit 4: Circles and Volume

Section 10.4 – Other Angle Relationships in Circles

Warm Up Identify the parts of the circle 10 minutes End.

Unit 6 Day 1 Circle Vocabulary.

Central Angles and Arc Measures

Standards: 7.0 Students prove and use theorems involving the properties of parallel lines cut by a transversal, the properties of quadrilaterals, and the.

Presentation transcript:

Circles Review Unit 9

Standards Standard 78: Identify and describe relationships among circles (radius, diameter, chord, tangent, secant, etc.) Standard 79: Find the relationships between congruent and similar circles. Standard 80: Solve problems involving tangents of circles. Standard 81: Measure central angles and arcs of circles. Standard 82: Describe relationships between adjacent arcs as well as between arcs and chords. Standard 83: Find the lengths of chords in a circle. Standard 84: Find the measure of arcs in a circle. Standard 85: Determine the area and circumference of a circle. Standard 86: Determine the area and circumference of a sector of a circle.

Standard 78: Identify and describe relationships among circles (radius, diameter, chord, tangent, secant, etc.) Draw a circle and label each of the following: Radius Diameter Chord Tangent Secant Center

Standard 80: Solve problems involving tangents of circles. Draw four circles and label them 1- 4. Draw an internal tangent between circles 1 and 3. Draw an external tangent between circles 2 and 4.

Standard 81: Measure central angles and arcs of circles. Draw a circle with a central angle of 45 degrees. Draw a circle with a radius of 12 feet and a central angle of 215 degrees.

Standard 82: Describe relationships between adjacent arcs as well as between arcs and chords. What is the relationship between adjacent arcs? What is the relationship between congruent arcs? Draw a picture of both.

Standard 84: Find the measure of arcs in a circle. Given the circle, draw an arc of 78 degrees.

Standard 85: Determine the area and circumference of a circle. What is the formula for the area of a circle? What is the formula for the circumference of a circle?

Standard 85: Determine the area and circumference of a circle. There is a circle with a radius of 30 feet. What is the area of the circle? What is the circumference of the circle?

Standard 86: Determine the area and circumference of a sector of a circle. What is the formula for the area of a sector of a circle? What is the formula for the circumference of a sector of a circle?

Standard 86: Determine the area and circumference of a sector of a circle. There is a circle with a radius of 30 feet and a sector of 38 degrees. What is the area of the sector? What is the circumference of the sector?