8下3-4

Quiz
•
Mathematics
•
8th Grade
•
Hard
曾偉倫 曾偉倫
Used 4+ times
FREE Resource
14 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
正三角形中,邊長為4公分。
請問高為多少?
4
12
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
正三角形中,邊長為4公分。
請問面積為多少?
8
16
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
下列關於等腰三角形的敘述,何者錯誤?
等腰三角形頂角的平分線會垂直平分底邊
等腰三角形的兩底角相等
等腰三角形底角的平分線會垂直其所對應的邊
等腰三角形兩腰上的高會相等
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
右圖,△ABC中, = 。若 是∠BAC的角平分線,且 =10, =4,則△ABC的面積是多少?
30
40
20
10
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
如右圖,四邊形ABCD中,已知 ⊥ , ⊥ , ∠CDB=65°, = =3,求∠ABD=幾度。
90
65
25
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
如右圖,已知 = = ,∠BCD=30°,
則∠BDC=幾度,
30
60
75
90
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
為 的中垂線。若 =24, =9, =16,則四邊形ADBC的周長為多少
70
80
90
100
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