Systerms : system terms : 内错角

A (41) | B (23) | C (62) | D (45) | E (33) | F (34) | G (18) | H (16) | I (28) | J (2) | K (5) | L (14) | M (29) | N (17) | O (10) | P (62) | Q (10) | R (41) | S (74) | T (31) | U (12) | V (12) | W (8) | X (1) | Y (2) | Z (2)

内错角是两条直线被第三条线穿过时，躲在中间且分居两侧的角。‌ 它是初中几何里判断线条是否平行的重要工具。‌‌

tags

数学

数学系统

Everything is a system, and every system contains systerms.

{add a term+}

Design by Adaptive Theme