Bell Ringer Mrs. Rivas Nancy wrote a proof about the figure shown below. In the proof below, Nancy started with the fact that

Slides:



Advertisements
Similar presentations
Sec 2-6 Concept: Proving statements about segments and angles Objective: Given a statement, prove it as measured by a s.g.
Advertisements

4-7 Median, Altitude, and Perpendicular bisectors.
Today – Wednesday, January 16, 2013  Learning Target: Review Ch.5 by practicing Ch.5 concepts in text book  Review Content from each chapter.
Mrs. Rivas International Studies Charter School. Below is a net of a polyhedron. How many edges does the polyhedron have? a) 6b) 8c) 12 d) 24 There are.
Mrs. Rivas International Studies Charter School. Bell Ringer Directions: Solve for x. 1. ____________ 2. ____________ 3. ____________.
Bell Ringer Get out your 10.5/10.7 homework assignment and formula sheet Get out your notebook and prepare to take notes on Section 11.2 What do you know.
Mrs. Rivas International Studies Charter School..
The Isosceles Triangles Theorems Section 4-6 Isosceles Triangle Theorem  If 2 sides of a triangle are congruent, then the angles opposite those sides.
4.5 Isosceles and Equilateral Triangles. Isosceles Triangles At least two sides are of equal length. It also has two congruent angles. Base Angles Base.
Isosceles and Equilateral Triangles Section 5-1. Isosceles Triangle A triangle with at least two congruent sides. Leg Leg Base Vertex Angle Base Angles.
1 4-5 Isosceles and Equilateral Triangles State and apply the Isosceles Triangle Theorem and its converse State and apply the corollaries for equilateral.
4-5 Isosceles and Equilateral Triangles
Section 4-4: The Isosceles Triangle Theorems
Section 4-5: Isosceles and Equilateral Triangles.
Mrs. Rivas Ida S. Baker H.S. A circumcenter represents the point of intersection between the three perpendicular bisectors of a triangle. Segments EO and.
Mrs. Rivas International Studies Charter School..
Section 5.1 Midsegment Theorem and Coordinate Proof.
Bisectors in Triangles Section 5-2. Perpendicular Bisector A perpendicular tells us two things – It creates a 90 angle with the segment it intersects.
8.5 Kites & Trapezoids.
Mrs. Rivas International Studies Charter School..
Isosceles and Equilateral Triangles
Isosceles Triangle Theorem (Base Angles Theorem)
Congruency and Triangles Featuring Right Triangles Section 4.6.
Isosceles Triangles Theorems Theorem 8.12 – If two sides of a triangle are equal in measure, then the angles opposite those sides are equal in measure.
Applied Geometry Lesson: 6 – 4 Isosceles Triangles Objective: Learn to identify and use properties of isosceles triangles.
Perpendicular and Angle Bisectors Perpendicular Bisector – A line, segment, or ray that passes through the midpoint of a side of a triangle and is perpendicular.
Chapter 4 Review Cut-n-Paste Proofs. StatementsReasons SAS Postulate X is midpoint of AC Definition of Midpoint Given Vertical Angles Theorem X is midpoint.
Isosceles Triangles A B C
CIRCLE THEOREMS LO: To understand the angle theorems created with a circle and how to use them. Draw and label the following parts of the circle shown.
Mrs. Rivas International Studies Charter School. Bell Ringer Solve the equations. Show each step you use to solve the equation.
EXAMPLE 3 Find the area of an isosceles triangle
Isosceles and Equilateral Triangles
4.5 Isosceles and Equilateral Triangles
Bell Ringer 10/21/
The Isosceles Triangle Theorems
Warm-up Solve for x x x-3 4 x+6 x+1 x
Bell ringer What do you know about triangles? How many degrees? Types? 2. What do you know about parallel lines? Their slopes? 2. What do.
3.7 Angle-Side Theorems Objective:
Trapezoids and Kites Section 7.5.
Bell work: Turn in when completed
Bell ringer What do you know about triangles? How many degrees? Types? 2. What do you know about parallel lines? Their slopes? 2. What.
Midsegments of Triangles
Mrs. Rivas Worksheet Practice 12-4
International Studies Charter School.
Proving Theorems about Isosceles Triangles (5.6.2)
Warm Up Which can you use to prove congruence: SSS, SAS, ASA, or AAS?
Section 4.5 isosceles & equilateral triangles
International Studies Charter School.
Chapter 7 Proofs and Conditional Probability
Objective: To use and apply properties of isosceles triangles.
Congruency.
Unit 7 review.
Chapter 7 Proofs and Conditional Probability
Chapter 4 Section 1.
(The Isosceles Triangle Theorems)
6 Vocab Review: Backs to Front
5.2 Bisectors in Triangles
4.1 Congruent Figures -Congruent Polygons: have corresponding angles and sides -Theorem 4.1: If 2 angles of 1 triangle are congruent to 2 angles of another.
Congruent Figures and Isosceles Triangles
What theorems apply to isosceles and equilateral triangles?
Chapter Three Triangles.
Isosceles and Equilateral Triangles
5.7 Proving That Figures Are Special Quadrilaterals
(The Isosceles Triangle Theorems)
To Start: 20 Points 1. What is a midsegment?
Isosceles and Equilateral Triangles
Properties of Triangles
Chapter 4 Congruent Triangles.
Chapter 5 Congruent Triangles.
4.4 The Isosceles Triangle Theorems Objectives: Legs/base Isosceles Triangle Th.
Presentation transcript:

Bell Ringer Mrs. Rivas Nancy wrote a proof about the figure shown below. In the proof below, Nancy started with the fact that 𝑋𝑍 is a perpendicular bisector of 𝑊𝑌 and proved that ∆𝑊𝑌𝑍 is isosceles.

International Studies Charter School. Mrs. Rivas International Studies Charter School. Section 5-1 Midsegements of Triangles

International Studies Charter School. Mrs. Rivas International Studies Charter School. Section 5-1 Midsegements of Triangles

International Studies Charter School. Mrs. Rivas International Studies Charter School. Section 5-1 Midsegements of Triangles

International Studies Charter School. Mrs. Rivas International Studies Charter School. Section 5-1 Midsegements of Triangles

International Studies Charter School. Mrs. Rivas International Studies Charter School. Section 5-1 Midsegements of Triangles

International Studies Charter School. Mrs. Rivas International Studies Charter School. Section 5-1 Midsegements of Triangles

International Studies Charter School. Mrs. Rivas International Studies Charter School. Section 5-1 Midsegements of Triangles

International Studies Charter School. Mrs. Rivas International Studies Charter School. Section 5-1 Midsegements of Triangles

International Studies Charter School. Mrs. Rivas International Studies Charter School. Section 5-1 Midsegements of Triangles 𝒀 𝑨𝑪 ∥ 𝒀𝒁 𝑪𝑩 ∥ 𝑿𝒀 • • 𝑨 𝑩 𝑨𝑩 ∥ 𝑿𝒁 • 𝑿 𝒁 𝑪

International Studies Charter School. Mrs. Rivas International Studies Charter School. Section 5-1 Midsegements of Triangles 𝟔𝟓

International Studies Charter School. Mrs. Rivas International Studies Charter School. Section 5-1 Midsegements of Triangles

International Studies Charter School. Mrs. Rivas International Studies Charter School. Section 5-1 Midsegements of Triangles

International Studies Charter School. Mrs. Rivas International Studies Charter School. Section 5-1 Midsegements of Triangles

International Studies Charter School. Mrs. Rivas International Studies Charter School. Section 5-1 Midsegements of Triangles 𝟔 𝑫𝑪 =𝟔 𝟕.𝟓 𝑨𝑪 =𝟏𝟐 𝑬𝑭 =𝟔 𝑨𝑩 =𝟏𝟓

International Studies Charter School. Mrs. Rivas International Studies Charter School. Section 5-1 Midsegements of Triangles

International Studies Charter School. Mrs. Rivas International Studies Charter School. Section 5-1 Midsegements of Triangles 𝑪𝑫 = 𝟏 𝟐 𝟐𝟔𝟒𝟎 𝑪𝑫 =𝟏𝟑𝟐𝟎 𝒇𝒕

International Studies Charter School. Mrs. Rivas International Studies Charter School. Section 5-1 Midsegements of Triangles

International Studies Charter School. Mrs. Rivas International Studies Charter School. Section 5-2 Perpendicular and Angle Bisector

International Studies Charter School. Mrs. Rivas International Studies Charter School. Section 5-2 Perpendicular and Angle Bisector

International Studies Charter School. Mrs. Rivas International Studies Charter School. Section 5-2 Perpendicular and Angle Bisector

International Studies Charter School. Mrs. Rivas International Studies Charter School. Section 5-2 Perpendicular and Angle Bisector

International Studies Charter School. Mrs. Rivas International Studies Charter School. Section 5-2 Perpendicular and Angle Bisector 𝟑𝒏−𝟏=𝟓𝒏−𝟕 −𝟐𝒏−𝟏=−𝟕 −𝟐𝒏=−𝟔 𝑸𝑹 =𝟓𝒏−𝟕 𝒏=𝟑 𝑸𝑹 =𝟓(𝟑)−𝟕 𝑸𝑹 =𝟏𝟓−𝟕 𝑸𝑹 =𝟖

International Studies Charter School. Mrs. Rivas International Studies Charter School. Section 5-2 Perpendicular and Angle Bisector

International Studies Charter School. Mrs. Rivas International Studies Charter School. Section 5-2 Perpendicular and Angle Bisector

International Studies Charter School. Mrs. Rivas International Studies Charter School. Section 5-2 Perpendicular and Angle Bisector

International Studies Charter School. Mrs. Rivas International Studies Charter School. Section 5-2 Perpendicular and Angle Bisector Angle Bisector Theorem Substitute

International Studies Charter School. Mrs. Rivas International Studies Charter School. Section 5-2 Perpendicular and Angle Bisector 𝟔𝒙+𝟑=𝟒𝒙+𝟗 𝟐𝒙+𝟑=𝟗 𝟐𝒙=𝟔 𝑭𝑩 =𝟔𝒙+𝟑 𝒙=𝟑 𝑭𝑩 =𝟔(𝟑)+𝟑 𝑭𝑩 =𝟏𝟖+𝟑 𝑭𝑩 =𝟐𝟏

International Studies Charter School. Mrs. Rivas International Studies Charter School. Section 5-2 Perpendicular and Angle Bisector 15 18

International Studies Charter School. Mrs. Rivas International Studies Charter School. Worksheet Sections 5-1 to 5-2 Show all your work in your comp-book.