Just for fun… do these (on the back of your warm up) 1.Name 2 pair of alternate interior angles <5 & <3 and <4 & <1 2.What is the sum of m<1 + m<2 + m<3?

Slides:

Advertisements

Similar presentations

Warm Up Determine the measure of the missing interior angle. What type of triangle is it? Unit 8 - Lesson 2 Exterior Angles of a Triangle.

Advertisements

Just for fun… do these (on the back of your warm up) 1.Name 2 pair of alternate interior angles  5 &  3 and  4 &  1 2.What is the sum of m  1 + m.

The Triangle Sum Theorem.  The sum of the measures of the angles of a triangle are equal to 180 degrees < 5 = < 3 and < 4= < 1 because alternate.

3.5 Parallel Lines and Triangles

4.2 Angles of Triangles Objectives: *Apply the Angle Sum Theorem.

An exterior angle is outside the triangle and next to one of the sides. 4-2 Exterior Angle Theorem.

3-5 Parallel Lines and Triangles

ANGLES OF TRIANGLES HEXAHEDRON: This is your standard cube, but "Hex" comes from the Greek meaning "six." About the only fascinating thing about this.

7-2: Exterior Angle Theorem

TRIANGLES DISCOVERY LESSON: EXTERIOR ANGLES OF A TRIANGLE EQUAL THE SUM OF THE OPPOSITE INTERIOR ANGLES.

4-2 Angles of Triangles Objectives: The student will be able to: 1. Apply the Triangle-Sum Theorem. 2. Apply the Exterior Angle Theorem.

HOW TO FIND AN ANGLE MEASURE FOR A TRIANGLE WITH AN EXTENDED SIDE

If two intersecting lines form congruent adjacent angles, what can you conclude about the lines? find x: Page x of your INB Write down this problem on.

Triangles and Lines – Sum of the Angles in a Triangle The sum of the angles in any triangle = 180°

Just for fun… do these (on the back of your warm up) 1.Name 2 pair of alternate interior angles  5 &  3 and  4 &  1 2.What is the sum of m  1 + m.

Do Now Complete 3, 2, 1 3 things you learned about linear functions 2 things you would like to know more about 1 thing you still have a questions about.

Angles of Triangles Chapter 4, Section 2. Angle Sum Theorem The sum of angles in a triangle is 180 o

3.4 parallel Lines and the Triangle Angle-Sum Theorem

11/11/2015 Geometry Section 9.6 Solving Right Triangles.

Warm up 1.Name 2 pair of alternate interior angles

Triangle Angle Sum Theorem, Triangle Exterior Angle Theorem

Bellwork (Turn in on ½ sheet!) If is a median, is it also an altitude?

I can use theorems, postulates and/or definitions to prove theorems about triangles including: measures of interior angles of a triangle sum to 180 degrees.

WARM UP Draw and label one of each of the following triangles: (Be sure to include all necessary notations) 1.Obtuse 2.Scalene 3.Right 4.Isosceles 5.Acute.

Warm Up Week 4. Section 11.1 Day 1 I will find the measures of interior and exterior angles of a polygon. 180 ⁰ 360 ⁰ 540 ⁰ 720 ⁰ 3 sides 4 sides.

Just for fun… do these (on the back of your warm up) 1.Name 2 pair of alternate interior angles

 4.1 Classifying Triangles. Example 1 Example 2.

3.5 Parallel Lines and Triangles

Sec: 3.5 Sol: G.2c  Interior angles  Exterior angles.

1. Please complete the last sections of your SKILL BUILDER now. 2. Please turn in your HOMEWORK to the box. 3.Pick up your WEEKEND SKILL BUILDER.

TODAY IN GEOMETRY…  Warm Up: Parallel Lines WS  Learning Goal 2: 3.3 Use Converse of Angle Theorems to prove lines are parallel.  Independent Practice.

Angles Outside the Triangle 4-1B What are remote interior angles? What is the relationship between an exterior angle and the remote interior angles?

Flashcards Pick a partner Get a set of flashcards Work on identifying angles You will have 10 minutes Go.

Chapter 3 Lesson 3 Objective: To use exterior angles of triangles.

3.4.  The sum of the measures of the angles of a triangle is 180.

Geometry 5.2 Inside Out.

Hello… Please get the gold warm up off the back desk.

+ Angle Relationships in Triangles Geometry Farris 2015.

3-5 Parallel Lines and Triangles I can apply the triangle angle sum theorem to find the values of variables. I can apply the exterior angle theorem to.

Geometry Section 4.1 Apply Triangle Sum Properties.

4.2 Angles of Triangles Then: You classified triangle by their side or angle measures. Now: 1. Apply the Triangle Angle-Sum Theorem. 2. Apply the Exterior.

Bell work: Find the range of possible values for each variable

Exterior Angles.

Triangle Angle Sum Theorem, Triangle Exterior Angle Theorem

Exterior Angle Theorem Parallel Lines Cut by a Transversal

Angles of Triangles.

Parallel Lines and Planes

Measuring Angles in Triangles

Section 4-1 Triangles and Angles.

Name the type of triangle shown below.

Please get a whiteboard, marker and eraser.

Geometry 4.1 Triangle and Angles.

3.5 Parallel lines and Triangles

Angles of Triangles 4.2.

Exterior Angles of Triangles

Please get the warm up off the back table

Properties of Triangles

Warm-up Find x a) b).

Exterior Angles of Triangles

Warm-up Find x a) b).

Warm-up Find x a) b).

V L T The sum of the interior angles of a triangle is 180 degrees.

Triangle Theorems.

Base Angles & Exterior Angles

Converse Definition The statement obtained by reversing the hypothesis and conclusion of a conditional.

Exterior Angle Theorem

5.2-Inequalities and Triangles

Take out your review packet

Module 15: Lesson 1 Interior & Exterior Angles

Presentation transcript:

Just for fun… do these (on the back of your warm up) 1.Name 2 pair of alternate interior angles <5 & <3 and <4 & <1 2.What is the sum of m<1 + m<2 + m<3? 180° 3.If m<4 = 65° and m<5 = 50°, what is m<2? 65° Find all the angle measures 50° 40° 90° 40° 90° 130° 50°

Let’s grade your vocab worksheets ♥Word search/Crossword/Mult Choice

Flashcards Pick a partner Get a set of flashcards Work on identifying angles You will have 10 minutes Go

Just a little quickie… ♥Please get pg 173 off the front desk and do problems 5-20…. ♥We’re just getting a head start on today’s assignment… ♥We’ll have notes in 15 minutes… ♥Go

3.5 Triangle Sum Theorem & Exterior Angle Theorem

Triangle Sum Theorem The sum of the angle measures in a triangle equal 180° m<1 + m<2 + m<3 = 180°

Exterior Angle Theorem (your new best friend) The measure of an exterior angle in a triangle is the sum of the measures of the 2 remote interior angles exterior angle remote interior angles m<4 = m<1 + m<2

an example with numbers x 82° 30° y find x & y x = 68° y = 112° 40x10x 2 30xfind all the angle measures 80°, 60°, 40° Do you hear the sirens?????

White boards Please get, or have someone get for you; whiteboard marker eraser

Finish the assignment On the same paper as 5-20, Please do on page 174