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3-5三角形的邊角關係

Authored by 文瑋 劉

Mathematics

8th Grade

Used 9+ times

3-5三角形的邊角關係
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21 questions

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1.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

若5 公分、9 公分、a 公分為某一個三角形的三邊長,則關於 a 的範圍,下列何者正確?

3a143<a<14

4a144<a<14

3a133<a<13

3a143\le a\le14

2.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

在△ABC 中, AB\overline{AB}  =11, BC\overline{BC}  =8, AC\overline{AC}  =8,

則△ABC 中的最大角為下列何者?

 A\angle A  

 B\angle B  

 C\angle C  

無法判斷

3.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

在△PQR 中,若∠P=60°,∠Q=70°,則下列何者正確?

PQ>QR\overline{PQ}>\overline{QR}

PR>PQ\overline{PR}>\overline{PQ}

QR>PR\overline{QR}>\overline{PR}

PQ>PR\overline{PQ}>\overline{PR}

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Media Image

3

5

6

8

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

下列何者不能作為三角形的三個邊長?

5,5,5\sqrt{5},\sqrt{5},\sqrt{5}

3,4,53,4,5

0.5,0.8,0.30.5,0.8,0.3

1,2,31,\sqrt{2},\sqrt{3}

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

有四根吸管長度分別為 2、3、4、5 單位長,任選三根拼成三角形,請問有幾種組合可以拼成三角形?

1種

2種

3種

4種

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Media Image

B\angle B

C\angle C

一樣大

不能比較

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