Section 5.1- Midsegments of Triangles

Slides:



Advertisements
Similar presentations
Bellringer Solve for X.
Advertisements

11/10/14 Geometry Bellwork. Formulas to Remember.
Math 2 Geometry Based on Elementary Geometry, 3 rd ed, by Alexander & Koeberlein 4.2 The Parallelogram and Kite.
Triangle Sum Properties & Inequalities in a Triangle Sections 4.1, 5.1, & 5.5.
Bell Problem Simplify the expression..
Parallel Lines and Proportional Parts Write the three ratios of the sides given the two similar triangles.
Parallel Lines and Proportional Parts
Geometry Section 8.5 Use Properties of Trapezoids and Kites.
Lesson 5-4: Proportional Parts 1 Proportional Parts Lesson 5-4.
Objective: Students will use proportional parts of triangles and divide a segment into parts. S. Calahan 2008.
Section 5.1 Midsegment Theorem and Coordinate Proof.
5.1.1 Midsegment Theorem and Coordinate Proof SWBAT: Define and use mid-segment of a triangle and mid-segment theorem to solve problems. You will accomplish.
Triangle Sum Theorem In a triangle, the three angles always add to 180°: A + B + C = 180° 38° + 85° + C = 180° C = 180° C = 57°
Unit 2 Test Review Geometry WED 1/22/2014. Pre-Assessment Answer the question on your own paper.
5-4 Midsegment Theorem Identify the Midsegment of a triangle
Midsegment of a Triangle and Proportionality in Triangles.
Geometry Sections 5.1 and 5.2 Midsegment Theorem Use Perpendicular Bisectors.
TODAY IN GEOMETRY…  Group POP QUIZ  Learning Target 1: 5.1 Use properties of mid segments of triangles to calculate lengths of sides  Learning Target.
LEARNING TARGET: STUDENTS WILL BE ABLE TO USE PROPERTIES OF MIDSEGMENTS AND WRITE COORDINATE PROOFS. FEBRUARY 12, Midsegment Theorem and Coordinate.
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.
Over Lesson 7–3 Complete the proportion. Suppose DE=15, find x. Suppose DE=15, find EG. Find the value of y. FE Ch 9.5  D F G E H x 28 DG =
Triangle Theorems. Warm-Ups 1.What do you think is going well with this class? 2.What is your favorite part of the class? 3.What do you wish was different.
WARM UP March 11, Solve for x 2. Solve for y (40 + y)° 28° 3x º xºxºxºxº.
Chapter 7 Lesson 4: Parallel Lines and Proportional Parts Geometry CP Mrs. Mongold.
Aim: How do we work with mid-segments and midpoints? Goal: Everyone will understand how to solve and find midpoints and mid- segments.
Section 6-5 Trapezoids and Kites. Trapezoid A quadrilateral with exactly one pair of parallel sides.
Midsegment Theorem and Coordinate Proofs
6.6 Trapezoids and Midsegment Theorem
5.4 Midsegment Theorem Geometry 2011.
4.3 Warm Up Are the triangles similar? If so, which theorem justifies your answer.
Section 5.4 Theorem – MIDSEGMENT THEOREM The segment connecting the midpoints of two sides of a triangle is parallel to the third side and is half as long.
Sect. 5.4 Midsegment Theorem
3.7 Midsegments of Triangles and Trapezoids
5.1: Midsegments of Triangles
Geometry 5-4 Midsegments
5.1: Midsegments of Triangles
Midsegment of a Triangle and Proportionality in Triangles
5-1 Midsegments of a Triangle
Notecards Unit 4 Triangle Properties.
Midsegment Theorem, Patterns, & The EOI
6.4 Triangle Midsegment Theorem
5.4 Midsegment Theorem Midsegment.
Objective: To use the properties of midsegments to solve problems.
Geometry Lesson 5.4.
5-1 Midsegments of Triangles
Lesson 5.3 Lesson 5.3 Midsegment Theorem
Geometry 7.4 Parallel Lines and Proportional Parts
PARALLEL LINES AND PROPORTIONAL PARTS
5.5: Midsegments of a Triangle
DRILL If M is the midpoint of AB and MA = 7, find AB and MB.
5.1 Midsegments of Triangles
Geometry 6.4 Midsegment Theorem
Theorems Involving Parallel Lines
A segment that connects the midpoints of two segments
7-4 Parallel Lines and Proportional Parts
Geometry 7.4 Parallel Lines and Proportional Parts
Midsegment Theorem Chapter 5 addition.
End Warm Up Are the two triangles congruent? State how you know.
5.1 Midsegment Theorem and Coordinate Proof
Midsegment of a Triangle and Proportionality in Triangles
Triangle Midsegment Theorem – The segment joining the midpoints of any two sides will be parallel to the third side and half its length. If E and D are.
Midsegment of a Triangle and Proportionality in Triangles
Midsegment of a Triangle and Proportionality in Triangles
By Angle Measures By Side Lengths
Day 11 Triangle Congruence
midsegment theorem OBJECTIVE: To use properties of midsegments to
Chapter 5: Quadrilaterals
Aim: How do we work with mid-segments and midpoints?
Midsegment of a Triangle and Proportionality in Triangles
Midsegment Defintion: the segment connecting the midpoints of the two nonparallel sides of a trapezoid. In a triangle, the segment connects the midpoints.
Presentation transcript:

Section 5.1- Midsegments of Triangles Coach Douglas- Geometry November 30th

Objective I will use the properties of mid segments to solve problems. Begin warm up on 5.1 notes.

Midsegment A segment that connects the midpoints of two sides of a triangle. D is the midpoint of side BA. E is the midpoint of side AC. Line DE is a midsegment of ΔABC.

Midsegment Theorem The midsegment theorem makes two statements: 1) Each midsegment is parallel to a side of triangle. 2) The length of a midsegment is half the parallel side.

Using the Midsegment Theorem Midsegment DE is parallel to side BC The length of DE is equal to half of BC. DE= 1/2 *BC