9.34 ୋ 9
ሙੀݺਗ 9.1 ̙Ԉ�Շࡈ̬ᗙҖٙהϞ࿁Ꮠᗙഃ (SSSS) אהϞ
࿁Ꮠԉഃ (AAAA) ࣛ�༈Շࡈ̬ᗙҖʔɓ֛Όഃ� ϞᗫΌഃ̬ᗙҖٙкйૢਗ਼
3B ̅ٙᄣᆗʱЪ༉ী
ሞ�
◀
1. ɨྡהͪމ͍˙Җ ABCD ձഷҖ EFGH�̴ࡁٙᗙڗே݊ 2 cm�
A D
B C2 cm
F H
E
G
2 cm
(a) ͍˙Җ ABCD ٙʫԉ᙮ࡳᗳйٙԉ��̙፯εɓධ��
ቚԉ���� ٜԉ���� ඔԉ
(b) ഷҖ EFGH ٙʫԉ᙮ࡳᗳйٙԉ��̙፯εɓධ��
ቚԉ���� ٜԉ���� ඔԉ
(c) ͍˙Җ ABCD ձഷҖ EFGH ݊щΌഃ�
݊����� щ
2. ɨྡהͪމڗ˙Җ PQRS ձڗ˙Җ WXYZ�̴ࡁٙהϞʫԉேٜ݊ԉ�
P S
Q R
PQ QR RS PS
ڗܓ (cm)
ڌ A
W Z
X Y
WX XY YZ WZ
ڗܓ (cm)
ڌ B
(a) ඎܓՇࡈڗ˙Җᗙٙڗܓ�Ԩҁϓڌ A ձڌ B�
(b) ڗ˙Җ PQRS ձڗ˙Җ WXYZ ݊щΌഃ�
݊����� щ
課堂活動活動 9.1