# Naming Angles With Letters Worksheet

Naming Angles With Letters Worksheet – Do Now 9/15: In the problem below, AB = 9 and AC = 14. Describe and correct the error. Segment Addition Postulate Agenda HW Review (10 min) Segment Addition Jigsaw (25 min) Agree Segment/Midpoint (10 min) Debrief (10 min)

Each person starts with a sheet containing segment addition problems. There will be a timer for each round. Round 1: Draw a diagram for each problem (2 minutes) Round 2: Write an equation for each problem (8 minutes) Round 3: Subtitle the numbers in the equation for each problem (5 minutes) Round 3: Solve each problem (and your Check Answers!!) (10 minutes) **Between each round, make sure your previous person was correct!**

## Naming Angles With Letters Worksheet

**must be annotated!** Congruent – ​​two figures that are the same size and shape Midpoint – the point that divides the segment into two congruent parts. Shown as “tick marks” in the diagram

## Letter Recognition Worksheets

DO NOW 9/16: If M is the midpoint of LN, what is the length of LM? x + 6 cm 5x – 2 cm L M N Naming Angles / Angle Pairs Agenda Naming Angles (10 mins) Vertical Angles / Adjacent Angles (5 mins) Supplementary / Supplementary Angles (5 mins) Angle Addition Postulate (15 mins) Abbreviation (15 mins)

The middle letter is always the vertex. Sometimes textbooks and tests will label an angle with a number inside the angle. If there is only one angle, we can name that angle using only vertices. However, if there are multiple angles, we need to use all 3 points.

Complementary Angles – Two angles that add up to 90° Complementary Angles – Two angles that add up to 180°

11 Other Angle Pairs ** MUST BE NOTED!** Vertical Angles – Any pair of angles that share a vertex but no sides Adjacent Angles – Any pair of angles that share a vertex and share a linear pair – A specific type of adjacent angles that are supplementary

### How To Name Simple Geometric Figures Like Lines And Angles — Krista King Math

** MUST BE NOTED!** If Z is a point inside ∠ABC, then m∠ABZ + m∠ZBC = m∠ABC.

13 Debrief (Departure Ticket) Can two obtuse angles be complementary? Why or why not? Exit Ticket: Corner Addition Worksheet

Do Now 9/17: In the figure below, name: an acute angle an obtuse angle a vertical pair a line pair a complementary pair Segment and Angle Addition Postulate Agenda Angle Bisectors (10 minutes) Angle Additions with Angle Bisectors (10 minutes) Clock Angles (10 minutes) Debrief (10 minutes)

16 Angle Bisector ** MUST BE NOTED!** Angle Bisector – A ray that divides an angle into two congruent angles. ∠CAB ≅ ∠BAD

#### Lines, Rays, And Angles

17 In 4-corner drill teams, solve problems on the board. When you have an answer, go to the corner with the correct answer choice. 1 point – the first team to answer correctly 1 point – to finish with the correct answer 1 point – to explain the answer correctly

22 Did the debrief help get things moving in your group? What slows things down? How can you use strategies from today to help you on your quiz tomorrow?

Take the 9/18 Angle and Segment Addition Quiz Now! Angle Bisector Agenda Angle and Segment Addition Quiz (20 mins) Clock Angle Bisector (20 mins) Debrief (10 mins)

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Do Now 9/19: Find Values ​​of x and Angles m∠DEC in Parallel Lines Agenda Notes Check! Clock Video (5 min) Clock Corner Activity (20 min) Formulation (10 min) Debrief (10 min)

## After This Slide Show You Should Know:

“Exactly how often is the second hand in minutes and hours?” Watch this until you go crazy. Then look at this. Then use it. Is it an angle bisector?

27 …maybe this will help? t = # of seconds (from 12:00:00 or zero degrees) S = 6t M = t/10 H = t/120 The measurements between the two hands must be equal and add up to 360° M – S = S – H + 360

28 Debrief What previous math skills did you draw on to solve this problem? Extension (classwork extra credit): How many times a day are all 3 arms aligned? How many 3 times if the hour hand is directly between the second and the minute?

29 HW This weekend come up with a statement that fits the following structure: ” If _________________, then ________________________.” …and doesn’t seem logical! Like “If the forest fires, the fish will die.”

#### Geometry Topics Name:

In order to operate this website, we log user data and share it with processors. To use this website, you must agree to our Privacy Policy, including the Cookie Policy Keep the slide show full screen Then click to go through the slides After this slide show you should know: What are the points, lines, intervals, vertices, and sides of an angle How to label an angle How to identify named angles on a diagram Read these slides and complete your worksheet The rest of the blanks are missing

Points are always labeled with capital letters. Below points A and B A line continues to infinity, which is why it has arrows at both ends. This is the line AB B An interval is similar to a line, but only the line segment between 2 points. This is the interval AB. A A B

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An angle weapon? The red shaded part is the corner. An angle is a measure of rotation. The sides of an angle are 2 lines or intervals that meet to form the angle. Intervals AB and AC are the sides of this angle.In everyday language, a vertex is an angle of a shape. It is the point where 2 sides of an angle meet. The marked angle is at vertex A.

4 How to name the angle P Q R S How do we name the angle shaded in red? Red can be written as angle or named after the points and vertices of the sides of the angle. The letter in the center of the 3 letters naming the angle is always the vertex. Here that Q two angles with a common side are called adjacent angles. Adjacent here

### Teaching Angles, Angles, Angles!

Think about the names of the shaded angles and then click to check if you are correct: A B C D E or or or or

Look at the diagram and find each angle listed. Think about its value and fill it in your worksheet. Click to check and mark your answers on your worksheet. =34° =32° =68°+62° =130° =39°+32° =71° =70° =40°+68° =108°

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