Similar triangles have equal angles.
相似三角形有相等的角。
Similar triangles have equal angles.
三角形有相等的角。
The bisectors of its base angles are equal.
底角的平分线是相等的。
A square has four equal sides and four 90-degree angles.
正方形有四个等边和四个九十度的角。
A square has four equal sides and four 90-degree angles.
正方形有四个等边和四个九十度的角。
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