
1-4相似三角形的應用測驗二
Quiz
•
Mathematics
•
9th Grade
•
Medium
許逸菁 許逸菁
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
如圖,四邊形ABCD中,E、F、G、H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
如圖,四邊形ABCD中,E、F、G、H分別為AD、AB、BC、CD的中點,則連接E、F、G、H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
如圖,四邊形ABCD中,AC=6公分,BD=9公分,P、Q、R、S分別為AB、BC、CD、AD的中點,則PQ+QR+RS+PS為多少公分?
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15
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
如圖,△ABC中,D、E、F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
△DEF面積=1/4△ABC面積
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
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?
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16
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
△ABC中,D、E、F分別為BC、AC、AB中點,連接D、E、F,若△DEF周長=10,則△ABC周長=?
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25
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
直角△ABC中,∠A=90°,D、E、F分別為△ABC三邊的中點。若AB=8,AC=15,則△DEF的面積
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