10.3 pt2 Triangles Exterior Angles

10.3 Exterior Angles of a Triangle

​Learning Intent: I am learning to find exterior angle measures of triangles.

Success Criteria: I can use an equation to find the measure of an exterior angle of a triangle.

Open Ended

Triangle ABC has angle measures 5x, 6x, and 70 degrees where angle A is 6x and angle B is 5x and angle C is 70 degrees. Find the measure of angle CAB and angle CBA

​How could we find the measure of angle 2?

​Find the missing angle?

​Find the missing angle?

​Find the value of x?

​Find the value of x?

​Find the value of x?

​Find the value of x?

​Let's practice what we just learned!!

Math Response

What is the measure of $$\angle4$$  in the triangle shown?

Type answer here

Correct Answer: 148

Deg^°

Rad

Math Response

What is the measure of $$\angle4$$  in the triangle shown?

Type answer here

Correct Answer: 161

Deg^°

Rad

Math Response

What is the measure of $$\angle2$$  in the triangle shown?

Type answer here

Correct Answer: 70

Deg^°

Rad

Math Response

What is the measure of angle A in the triangle?

Type answer here

Correct Answer: 62

Deg^°

Rad

Math Response

Find the value of x.

Type answer here

Correct Answer: 11

Deg^°

Rad

Math Response

Find the measure of the indicated angle. 

Type answer here

Correct Answer: 102

Deg^°

Rad

Math Response

Find the value of x by using the exterior angle theorem.

Type answer here

Correct Answer: 5

Deg^°

Rad

Math Response

Solve for x. 

Type answer here

Correct Answer: 12

Deg^°

Rad

Math Response

Find the measure of the indicated angle. 

Type answer here

Correct Answer: 67

Deg^°

Rad

Math Response

Find the measure of the indicated angle. 

Type answer here

Correct Answer: 72

Deg^°

Rad

End of the Lesson