### Home > MC1 > Chapter 4 > Lesson 4.3.4 > Problem 4-123

4-123.

Use the values given below for the lengths in the diagrams from problem 4-122 to find the total length of each segment. For example, if were equal to

Part (a) using

Remember that the expression for part (a) is

.

If you put in the value forand simplified the expression, what answer would you get?

Try the problem on your own before checking the answer.Part (b) using

Look back at part (b) of 4-122. Using the expression you wrote, substitute

for '' '' and simplify the expression.Part (c) using

This problem is very similar to parts (a) and (b). If you are having trouble, refer to those problems.