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八年級數學-三角形邊角關係

Authored by 蔡佩旻 蔡佩旻

Mathematics

8th Grade

Used 117+ times

八年級數學-三角形邊角關係
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15 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

設三角形的三邊長分別為 4、7、x,則 x 可能的整數值有多少個? 

3 個

5 個

 7 個

9 個

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

已知△ABC 的三邊長均為整數,且AB=1,AC=14,則可判斷△ABC 為下列何種三角形?

鈍角三角形

直角三角形

等腰三角形

正三角形

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

若 4、9、2x-1 三個線段長可圍成三角形,則下列敘述何者正確?

x>9

3<x<7

6<x<14

5<x<13

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

△ABC 中,∠A=50°,∠B=70°,則△ABC 中哪一個邊長最短?

AB

BC

CA

不一定

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

△ABC 中,∠A=40°,∠B=60°,試比較AB、BC、CA的大小關係為何?

AB>AC>BC

AC>AB>BC

AC>BC>AB

BC>AB>AC

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

等腰三角形的底邊為 14,底邊上的高為 24,求此等腰三角形的周長為多少?

42

48

50

64

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

若三角形的三邊長均為整數,其周長為 14,則這樣的三角形有幾個? 

1

2

3

4

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