### Home > PC3 > Chapter 1 > Lesson 1.1.5 > Problem 1-49

1-49.

Calculate the

*exact*length of. Express your answer in simple radical form.Use the Pythagorean Theorem. Since both legs are the same length,

. Label these sides.What is the exact value of

? Use the value found in part (a) in the formula:

What is the exact value of

?