### Home > INT3 > Chapter 9 > Lesson 9.1.2 > Problem 9-13

9-13.

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?