CPM Homework Help : PC Problem 1-147

Change the following degree measures to radians. Use exact values.

Hint:

Use a Giant One of $π \text{ rad}/180º$ .

$120º$
Answer (a):
$120 ^ { \circ } \cdot \frac { \pi \text { radians } } { 180 ^ { \circ } }$
$\frac{2}{3}\ \pi\text{ radians}$