3-5三角形邊角關係

3-5三角形邊角關係

8th Grade

10 Qs

quiz-placeholder

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3-5三角形邊角關係

3-5三角形邊角關係

Assessment

Quiz

Mathematics

8th Grade

Hard

Created by

t078 t078

Used 6+ times

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

有長4公分、9公分的兩線段,則下列甲、乙的敘述何者正確?

甲:若另有一長4公分的線段,則此三線段可構成等腰三角形

乙:若另有一長9公分的線段,則此三線段可構成等腰三角形

甲正確,乙錯誤

甲錯誤,乙正確

兩人皆正確

兩人皆錯誤

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

△ABC中, AC\overline{AC}  =5, BC\overline{BC}  =8,則 AB\overline{AB}  不可能為下列何者?

2

5

8

11

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 △ABC中,若 AC\overline{AC}  AB\overline{AB}  ,且D為 BC\overline{BC}  上異於B、C的任一點,則下列何者必定正確?

 AD\overline{AD}  < \overline{AB} 

 \overline{AD}   \overline{AB} 

 \overline{AD}  < \overline{AC} 

 \overline{AD}   \overline{AC} 

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

下列有幾組長度可以圍成一個三角形?

(1) 7公分、7公分、9公分

(2) 2.3公分、1公分、1公分

(3) 4公分、5公分、6公分

(4) 5公分、3公分、8公分

1

2

3

4

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

如右圖, \overline{AB} =4, BC\overline{BC} =6, CD\overline{CD} =5, AD\overline{AD}  =8,
 AC\overline{AC} 的範圍為何?

4< \overline{AC} <9

3< \overline{AC} <11

4< \overline{AC} <10

3< \overline{AC} <10

6.

MULTIPLE SELECT QUESTION

2 mins • 1 pt

已知x+2、7、2x為三角形的三邊長,且x為整數,下列哪些數是x可能的解。

1

3

5

7

9

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

若三角形中,任兩內角之和大於第三內角,則此三角形必為哪一種三角形?

銳角三角形

直角三角形

鈍角三角形

以上皆有可能

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