a, Các cặp so le trong
\(\widehat{A_2};\widehat{B_4}\\ \widehat{A_3};\widehat{B_3}\\ \widehat{D_3};\widehat{C_1}\\ \widehat{D_4};\widehat{C_2}\)
b, Các cặp đồng vị
\(\widehat{A_1};\widehat{B_3}\\ \widehat{A_4};\widehat{B_4}\\ \widehat{B_2};\widehat{A_2}\\ \widehat{B_1};\widehat{A_3}\\ \widehat{D_3};\widehat{C_3}\\ \widehat{D_4};\widehat{C_4}\\ \widehat{D_1};\widehat{C_1}\\ \widehat{D_2};\widehat{C_2}\)
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