Copy the triangles at right onto your paper. Homework Help ✎
Label the missing sides with their exact lengths. That is, leave your answers in radical form.
A 30º-60º-90º triangle is sometimes called a half-equilateral triangle. Draw a picture to illustrate this, and explain how that fact can be used to help label the missing sides in part (a).
Refer to your work from problem 9-4 in the previous lesson.
What would happen if you changed the orientation of the triangle?
Where would the line of symmetry lie?