9.30 ୋ 9
ί 1B ̅ୋ 10 �ҢࡁኪཀίՇࡈΌഃɧԉҖʕ�
(a) ̴ࡁٙ࿁Ꮠԉഃ�
(b) ̴ࡁٙ࿁Ꮠᗙഃ�
Νଣ�
ίՇࡈΌഃྡҖʕ�
(a) ̴ࡁٙ࿁Ꮠԉഃ�
(b) ̴ࡁٙ࿁Ꮠᗙഃ�
މ˙کኪ୦�͉ື˴ࠅණʕ
ীሞΌഃεᗙҖ�ৰतйൗ
̮� ͉ືהܸٙ�Όഃྡ
Җ�ޫމ�ΌഃεᗙҖ��
◀
ί̛ྡʕ�̬ᗙҖ ABCD ձ̬ᗙҖ PQRS ݊ΌഃྡҖ�Չʕ�
1. +A = +P�+B = +Q�+C = +R�+D = +S�
у̴ࡁٙ࿁Ꮠԉഃ�
2. AB = PQ�BC = QR�CD = RS�DA = SP�
у̴ࡁٙ࿁Ꮠᗙഃ�
ί˸ɪٙઋرʕ�Ңࡁ͵̙ҪΌഃྡҖ ABCD ձ PQRS ͜˸ɨҖό
ڌͪ�
ABCD , PQRS
試算
ίྡʕ�ABCD , PQRS�༊ᄳ̈༈࿁ΌഃྡҖٙ࿁Ꮠԉձ࿁Ꮠᗙ�
A D
C
B Q
P S
R
+BAD = + �+ABC = + �+BCD = + �+ADC = +
AB = BC = CD = AD =
B
A
DC
Q
P
SR
ܲ࿁Ꮠٙᓃනҏᄳ̈༈
࿁ΌഃྡҖٙΤ၈�˸˙ک
ʱ፫࿁Ꮠԉձ࿁Ꮠᗙ�
ᅂΙዚልΙٙ˖̙ၾࡡ
Όഃ�ᅂΙዚٙ༶Ъ
ࡡଣ݊᎑ཥΙՏஔ�ʕ
༶͜əΈ�᎑ཥձᆠ�
#ᅂΙ #᎑ཥΙՏஔ
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