1-4相似三角形的應用測驗二

1-4相似三角形的應用測驗二

9th Grade

10 Qs

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1-4相似三角形的應用測驗二

1-4相似三角形的應用測驗二

Assessment

Quiz

Mathematics

9th Grade

Medium

Created by

許逸菁 許逸菁

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

如圖,四邊形ABCD中,EFGH分別為各邊中點,AC、BD為對角線,則下列敘述何者正確?

四邊形EFGH為菱形

四邊形EFGH的周長=2(AC+BD)

四邊形EFGH的面積=1/4四邊形ABCD面積

其餘選項皆非

2.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

Media Image

如圖,四邊形ABCD中,EFGH分別為AD、AB、BC、CD的中點,則連接EFGH四點所形成的四邊形必為何種四邊形?

長方形

菱形

平行四邊形

正方形

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

如圖,四邊形ABCD中,AC=6公分,BD=9公分,PQRS分別為AB、BC、CD、AD的中點,則PQ+QR+RS+PS為多少公分?

30

25

20

15

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

如圖,△ABC中,DEF分別為三邊中點,試問以下敘述何者錯誤?

DEF~△ABC

DEF周長=1/4△ABC周長

DF=AC2DF=\frac{AC}{2}

DEF面積=1/4△ABC面積

5.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Media Image

如圖,菱形ABCD的對角線BD長為6,面積為24,則四邊中點所形成的新四邊形PQRS的周長為多少?

13

14

15

16

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

ABC中,DEF分別為BC、AC、AB中點,連接D、E、F,若△DEF周長=10,則△ABC周長=?

10

15

20

25

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

直角△ABC中,∠A=90°,DEF分別為△ABC三邊的中點。若AB=8,AC=15,則△DEF的面積

15

30

45

60

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