Monday: Angle Sum Theory

Complete the Error Analysis question on the handout and paste into your notebook. Be ready to discuss with your partner and your class.

​

​MINDFUL MINUTE: (5 min)

​Join the Quizizz using the code on the right once you complete the error analysis

Match

Vocabulary Review

(Match each picture of the angle with its name)

Alternate Interior Angles

Corresponding Angles

Alternate Exterior Angles

Vertical Angles

Supplementary Angles

• Alternate Interior Angles

• Corresponding Angles

• Alternate Exterior Angles

• Vertical Angles

• Supplementary Angles

SWBAT describe the Triangle Angle-Sum-Theory

Language Objective

SWBAT use the sum of the angle measures in a triangle to solve problems

​ Learning Objective:

Triangle Angle Sum Theory

Please join the lesson from your device. Be ready to answer questions on paper during lesson.

APPLICATIONS OF TRIANGULAR
ARCHITECTURE IN THE UAE

​Al Bahar Tower - Abu Dhabi

​Abu Dhabi Grand Mosque

Fill in the Blanks

The triangle angle sum theory states that the sum of all three angles of a triangle add up to

degrees.

Open Ended

THINK PAIR SHARE: Use the Triangle Angle-Sum Theorem to find the missing angle

I DO: Use the Triangle Angle-Sum-Theorem to solve for x

​

WE DO: Use the Triangle Angle-Sum-Theorem to solve for x

​

WE DO:EXTENDED PRACTICE
Use the Triangle Angle-Sum-Theorem to solve for x

​

Open Ended

CHECK FOR UNDERSTANDING: Quick Write

In your own words, explain what the Triangle Angle Sum Theorem is.

Poll

How confident do you feel about finding measurements of unknown angles using the Triangle Sum Theorem?

• Very Confident. This is super EASY!

• I think I got this!

• Almost there, need a little more practice.

• I need help!

Go on to this worksheet only if you complete the worksheet A first.

CHALLENGE PROBLEMS

START working on the worksheet. You may work on your own or groups of up to three.

Worksheet A

YOU TRY: PRACTICE