Exploring the Triangle Exterior Angle Theorem

Mr. Schulte emphasizes the importance of note-taking for understanding math content. He introduces the Triangle Exterior Angle Theorem, explaining that an exterior angle of a triangle is equal to the sum of the two non-adjacent interior angles. The video includes examples and practice questions to reinforce the concept. Mr. Schulte also provides tips for solving homework problems and concludes with a recap of the lesson.

Why is it important to write down notes according to Mr. Schulte?

• It makes the video shorter.

• It helps in drawing better triangles.

• It ensures you get a good grade.

• It helps in remembering jokes.

Tags

CCSS.RL.2.6

CCSS.RL.8.3

What is the sum of the interior angles of a triangle?

• 270 degrees

• 360 degrees

• 180 degrees

• 90 degrees

Tags

CCSS.8.G.A.5

How many exterior angles does a triangle have?

• One

• Two

• Four

• Three

Tags

CCSS.8.G.A.5

According to the Triangle Exterior Angle Theorem, an exterior angle is equal to:

• The difference between the two interior angles it touches.

• The sum of the two interior angles it does not touch.

• The sum of the two interior angles it touches.

• The difference between the two interior angles it does not touch.

Tags

CCSS.8.G.A.5

If an exterior angle of a triangle is 100 degrees, which of the following could be the measures of the two non-adjacent interior angles?

• 40 degrees and 40 degrees

• 30 degrees and 70 degrees

• 50 degrees and 50 degrees

• 60 degrees and 60 degrees

Tags

CCSS.8.G.A.5

In the example where the exterior angle is 39 degrees, what are the measures of the two non-adjacent interior angles?

• 30 degrees and 9 degrees

• 25 degrees and 14 degrees

• 24 degrees and 15 degrees

• 20 degrees and 19 degrees

Tags

CCSS.8.G.A.5

What is the first step in solving problems involving the Triangle Exterior Angle Theorem?

• Identify the interior angles.

• Identify the exterior angle.

• Subtract the interior angles.

• Add all angles together.

Tags

CCSS.8.G.A.5

If the exterior angle is 150 degrees and one of the non-adjacent interior angles is 115 degrees, what is the measure of the other non-adjacent interior angle?

• 35 degrees

• 45 degrees

• 25 degrees

• 50 degrees

Tags

CCSS.8.G.A.5

Which two angles would you need to find the measure of angle x using the exterior angle theorem?

• The exterior angle and one interior angle

• The two non-adjacent interior angles

• The two adjacent interior angles

• Any two angles

Tags

CCSS.8.G.A.5

Did you enjoy the triangle jokes in the video?

• Maybe

• No

• Yes

• I don't know

Tags

CCSS.4.G.A.2