### Home > PC3 > Chapter 1 > Lesson 1.2.1 > Problem 1-73

1-73.

Use the triangle below to answer the following questions.

What kind of a special triangle is this?

What are the measures of the three angles?

What is the exact length of

?Set up a ratio with the

. What is the exact length of side

?Write and simplify the sine ratio for

. Leave in simplified radical form.