話し言葉 Every edge has two ends, so the degrees add up to twice the number of edges. どの辺にも端が 2 つあるので、次数の和は辺の数の 2 倍になる。
書き言葉・答案 How many edges does a complete graph on 6 vertices have? 頂点が 6 個の完全グラフの辺の数はいくつか。
言い間違えやすいところ
立方体などの立体の辺も英語で edge(エントリ edge)。
根拠の件数
話し言葉計 60
edges of the graph | edge of the graph | edges in the graph | an edge between | edge from | number of edges | vertices and edges | edges and vertices | edge connecting | edges connecting60
書き言葉計 62
edges of the graph | edge of the graph | edges in the graph | an edge between | edge from | number of edges | vertices and edges | edges and vertices | edge connecting | edges connecting62