Answer:
Containment resulted in America directly getting involved in foreign affairs while detente was focused on easing tensions between the US and Soviet Union.
Step-by-step explanation:
Both of these policies were used by the US at different points throughout the Cold War. The policy of containment can be seen when the US entered the Korean and Vietnam Wars. In both cases, America is trying to stop the spread of communism.
On the other hand, the policy of detente lead to negotations like the Strategic Arms Limitation Talks. These took place under president Richard Nixon and Jimmy Carter. The goal of these were to stop the production of nuclear warheads that could cause massive destruction.