SKIP TO CONTENT
IXL Learning
Sign in
Remember
Sign in now
Join now
IXL Learning
Learning
Math
Skills
Lessons
Videos
Games
Language arts
Skills
Videos
Games
Science
Social studies
Spanish
Recommendations
Recommendations wall
Skill plans
IXL plans
Ohio state standards
Textbooks
Test prep
Awards
Student awards
Assessment
Analytics
Takeoff
Inspiration
Learning
All
Learning
Math
Language arts
Science
Social studies
Spanish
Recommendations
Skill plans
Learning
Skill plans
IXL plans
Ohio state standards
Textbooks
Test prep
Awards
Assessment
Analytics
Takeoff
Inspiration
Membership
Sign in
Math
Math
Language arts
Language arts
Science
Science
Social studies
Social studies
Spanish
Spanish
Recommendations
Recommendations
Skill plans
Skill plans
IXL plans
Ohio state standards
Textbooks
Test prep
Awards
Awards
Exterior angles of triangles
Share lesson:
Share this lesson:
Copy link
Google Classroom
Facebook
Twitter
Share lesson