The ____________ is the location where three or more lines intersect.

Slides:



Advertisements
Similar presentations
5.1 Bisector, Medians, and Altitudes
Advertisements

The EQUIDISTANCE Theorems
5.1 Perpendiculars and Bisectors
4-7 Median, Altitude, and Perpendicular bisectors.
OBJECTIVE: 1) BE ABLE TO IDENTIFY THE MEDIAN AND ALTITUDE OF A TRIANGLE 2) BE ABLE TO APPLY THE MID-SEGMENT THEOREM 3) BE ABLE TO USE TRIANGLE MEASUREMENTS.
Chapter 5. Vocab Review  Intersect  Midpoint  Angle Bisector  Perpendicular Bisector  Construction of a Perpendicular through a point on a line Construction.
Warm- up Type 2 writing and Construction Write your own definition and draw a picture of the following: Angle Bisector Perpendicular Bisector Draw an acute.
8/9/2015 EQ: What are the differences between medians, altitudes, and perpendicular bisectors? Warm-Up Take out homework p.301 (4-20) even Check your answers.
Medians, Altitudes and Concurrent Lines Section 5-3.
Points of Concurrency Line Segments Triangle Inequalities.
Geometry Chapter 5 Review.
[10.2] Perpendicular Bisector  Draw a Chord AB  Find the Midpoint of AB (Label it M)  From M, draw a line through O  What do you notice? Circle #1.
Chapter 7: Proportions and Similarity
Objective: Students will use proportional parts of triangles and divide a segment into parts. S. Calahan 2008.
CHAPTER 5 Relationships within Triangles By Zachary Chin and Hyunsoo Kim.
MELANIE DOUGHERTY GEOMETRY JOURNAL 5. Describe what a perpendicular bisector is. Explain the perpendicular bisector theorem and its converse. A perpendicular.
Day 36 Triangle Segments and Centers. Today’s Agenda Triangle Segments Perpendicular Bisector Angle Bisector Median Altitude Triangle Centers Circumcenter.
Relationships Within Triangles Chapter5. Triangle Midsegment Theorem If a segment joins the midpoints of two sides of a triangle, then the segment is.
5.3: Concurrent Lines, Medians and Altitudes Objectives: To identify properties of perpendicular bisectors and angle bisectors To identify properties of.
Angle-Side Relationship  You can list the angles and sides of a triangle from smallest to largest (or vice versa) › The smallest side is opposite.
Unit 2 Test Review Geometry WED 1/22/2014. Pre-Assessment Answer the question on your own paper.
Angle Bisector A segment that cuts an angle in half.
10 pt 15 pt 20 pt 25 pt 5 pt 10 pt 15 pt 20 pt 25 pt 5 pt 10 pt 15 pt 20 pt 25 pt 5 pt 10 pt 15 pt 20 pt 25 pt 5 pt 10 pt 15 pt 20 pt 25 pt 5 pt Midsegments.
5-1 Bisectors, Medians, and Altitudes 1.) Identify and use perpendicular bisectors and angle bisectors in triangles. 2.) Identify and use medians and altitudes.
5.4 Medians and Altitudes A median of a triangle is a segment whose endpoints are a vertex and the midpoint of the opposite side. –A triangle’s three medians.
Proportional Parts Advanced Geometry Similarity Lesson 4.
Perpendicular Bisectors ADB C CD is a perpendicular bisector of AB Theorem 5-2: Perpendicular Bisector Theorem: If a point is on a perpendicular bisector.
Altitude, perpendicular bisector, both, or neither?
Unit 5 Review. 1.)Name the angles from smallest to largest if AB=7, BC=10 and AC=14.
Vocabulary Unit 4 & 5. Equilateral/Equiangular Triangle A triangle with 3 congruent sides and 3 congruent angles.
Vocabulary Truths About Triangles MidsegmentsInequalities.
Centers of Triangles or Points of Concurrency Median.
5.4 – Use Medians and Altitudes Length of segment from vertex to midpoint of opposite side AD =BF =CE = Length of segment from vertex to P AP =BP =CP =
Chapter 5: Relationships in Triangles. Lesson 5.1 Bisectors, Medians, and Altitudes.
5.1 Special Segments in Triangles Learn about Perpendicular Bisector Learn about Medians Learn about Altitude Learn about Angle Bisector.
Vocabulary Truths About Triangles MidsegmentsInequalities.
Refresher…  ABC is isosceles Line CD bisects  C and is a perpendicular bisector to AB If m  A is 50, find m  B, m  ACD, and m  ACB *After notes are.
MID-SEGMENT & TRIANGLE PROPORTIONALITY Day 8.  A midsegment of a triangle is a segment that connects the midpoints of two sides of a triangle. In the.
8.4 Proportionality Theorems. Geogebra Investigation 1)Draw a triangle ABC. 2)Place point D on side AB. 3)Draw a line through point D parallel to BC.
Points of Concurrency MM1G3e Students will be able to find and use points of concurrency in triangles.
Median, Angle bisector, Perpendicular bisector or Altitude Answer the following questions about the 4 parts of a triangle. The possible answers are listed.
Chapter 5: Properties of Triangles Geometry Fall 2008.
Chapter 5, Section 1 Perpendiculars & Bisectors. Perpendicular Bisector A segment, ray, line or plane which is perpendicular to a segment at it’s midpoint.
Vocabulary Triangle Algebra MidsegmentsInequalities.
Beyond CPCTC Lesson 3.4.
Medians Median vertex to midpoint.
Important Lines in a Triangle
Medians - Perp Bisectors - Altitudes
Unit 5 Review.
4.3 Warm Up Are the triangles similar? If so, which theorem justifies your answer.
Name the special segment Options: Median, Angle Bisector,
Triangle Centers Points of Concurrency
Perpendicular Bisector
Geometry 5-4 Midsegments
Angle Bisectors & Medians.
7-5: Parts of Similar Triangles
Chapter 5 Types of Segments
Geometry Lesson 5.4.
December 7, : Perpendicular and Angle Bisectors
Triangle Segments.
Lesson 5-3: Bisectors in Triangles
5.2 Bisectors in Triangles
Module 15: Lesson 4 Perpendicular Bisectors of Triangles
5.3 Medians and Altitudes of a Triangle
Bell Work Complete problems 8, 9, and 15 from yesterday. Proofs are on the board.
By Angle Measures By Side Lengths
Altitude, perpendicular bisector, both, or neither?
SPECIAL SEGMENTS.
Midpoint and Median P9. The midpoint of the hypotenuse of a right triangle is equidistant from the 3 vertices. P12. The length of a leg of a right triangle.
Lesson 6-1 Medians.
Presentation transcript:

The ____________ is the location where three or more lines intersect.

The ________ is the point of concurrency of the medians of a triangle.

The ________ is the point of concurrency of the perpendicular bisectors of a triangle.

The ________ is the point of concurrency of the altitudes of a triangle.

The ________ is the point of concurrency of the angle bisectors of a triangle.

Find the value of x. x 45

A BC is a midsegment. If AB = 2x - 27 and BD = x + 15, What is the length of AD? E B C D

E H F G J FH is a midsegment. EFH = x + 63 and EGJ = 2x-19, What is the value of x? E G F H J

LM is a midsegment. What is the length of LM? x + 85 M 3x + 46

MP is a midsegment. What is the value of x? Q

AE = 42. Find the length of AO and EO.

BO = 18.4. Find the length of BF and FO.

DO = 5.5. Find the length of CD and CO.

BO = 4x + 4 and FO = 16, find the value of x.

AE = 6x + 3 and AO = 36. Find the value of x.

XY = 4x – 15 and ZY = 17 – 4x. Find the value of x.

DC is a perpendicular bisector DC is a perpendicular bisector. If PCA = 7x + 13, what is the value of x?

D is the midpoint of AB and CE is the perpendicular bisector of DB. DE = 18 and EB = 18. What is the length of AB?

CD is the angle bisector of ACB. If ACD = 5x – 22 & BCD = 69 - 2x, find the value of ACB.

Find the value of x. 6x + 3 7x - 3

Can the following lengths form a triangle? Explain. 5 cm, 10 cm 11 cm

Can the following lengths form a triangle? Explain. 17 cm, 19 cm 36 cm

Order the angles of the triangle from smallest to largest. K 20 cm 14 cm L M 26 cm

Order the angles of the triangle from smallest to largest. 6x H J 4x

Order the sides of the triangle from smallest to largest 80 F E