
南一國中數學3上ch1-4
Authored by 數學 南一
Mathematics
9th Grade
Used 7+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
△DBE面積:△DEC面積=1:1
△BCD面積:△BCE面積=1:1
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
已知△ABC~△DEF,且△ABC周長是△DEF周長的3倍。若△DEF的面積為9平方公分,則△ABC面積為多少平方公分?
81
27
18
9
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
已知△ABC各邊的中點分別為D、E、F。若△DEF的面積為18平方公分,則△ABC的面積為多少平方公分?
54
62
72
84
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
∠A:∠D=2:3
△ABC的外角和:△DEF的外角和=2:3
△ABC面積:△DEF的面積=2:3
△ABC的周長:△DEF的周長 =2:3
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
亨亨想要測量與地面垂直的樹的高度,他先測量該樹影子的長度為12.6公尺,且在同一時間拿一根長1.2公尺的標桿垂直地面,測得標桿影子的長度為0.9公尺,試問該樹的高度是多少公尺?
16.2
16.8
17.4
18
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
1:2:3
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
6
3
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