If you're seeing this message, it means we're having trouble loading external resources on our website.

If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.

Unit 7: Lesson 1

Lesson 1: Relationships of angles

Name angles

Problem

What is a name for the marked angle?
Four rays. One ray starts at point A, then points to the left and slightly up through point E. A second ray starts at point A, then points up and slightly to the left through point D. A third ray starts at point A, then points up and to the right through point C. A fourth ray starts at point A, then points to the right and slightly up through point B. A green curved line connects ray AE to ray AD.