9.36 ୋ 9
課堂練習練習 9.3
кᓙɨΐ̩ɿ݊щ͍ᆽ�[ୋ 1-2 ᕚ]
1. ߰ՇࡈʞᗙҖ̙ҁΌࠠᛌ�༈Շࡈ
ʞᗙҖΌഃ� ݊�� щ
2. ОՇࡈ͍˙Җே݊ΌഃྡҖ� ݊�� щ
3. ίྡʕ�ABCDE ձ OPQRS ே͍݊ʞᗙҖ�˲ ABCDE , OPQRS�
Ӌ x ձ y�
A
B E
108° 2
C D
x
y
O
P S
Q R
4. ਞڝྡ�༆ᙑމО̬ᗙҖ ABCD ձ PQRS ӚϞ̙ঐ݊ΌഃྡҖ�
A D
C
P
Q
S
R
B
6 cm
7 cm
3 cm 3 cm
4 cm 4 cm
5 cm 5 cm
習 題 9C
ܓ一
1. Ⴍ̈ɨΐ࿁ྡҖ݊щΌഃ�
(a) (b) (c)
✂