题目

Everyone needs friends. We all like to feel close to someone. It is nice to have a friend to talk, laugh and do things with. Surely, there are times when we need to be alone. We don’t always want people around. But we would feel lonely if we never had a friend. No two people are the same. Sometimes friends don’t get along well, which doesn’t mean that they no longer like each other. Most of the time they will go on being friends. Sometimes friends move away, then we feel very sad. We miss them much, but we can call them and write to them. Maybe we would never see them again, and如图，用量角器度量图中各角的度数，看看其中哪些角相等？哪些角的度数之和为？