在圖中,已知 DE // BC,AD = 5,DB = 3,AE = 10,求 EC 的長度。
(9上)平行線截比例線段(相似三角形)

Quiz
•
Mathematics
•
9th Grade
•
Easy
帥哥 良
Used 10+ times
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A) 6
B) 7.5
C) 9
D) 10
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
在圖中,若 DE // BC,則三角形 ADE 與三角形 ABC 是什麼關係?
A) 全等
B) 相似
C) 不相似
D) 無法判斷
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
在圖中,若 DE // BC,則 DE:BC 的比是多少?
A) 6:9
B) 6:3
C) 8:10
D) 8:15
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
在圖中,若 DE // BC,則 DE:BC 的比是多少?
A) 5:8
B) 5:3
C) 8:12
D) 9:15
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
在圖中,若 DE // BC,求 AE 的長度。
A) 10
B) 8
C) 12
D) 15
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
在圖中,若 DE // BC,則 BC 的長度是多少?
A) 12
B) 9
C) 10
D) 15
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
在第二個圖中,若 DE // BC,則 AE 的長度是多少?
20
8
12
16
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