
縮放與相似
Quiz
•
Mathematics
•
9th Grade
•
Practice Problem
•
Hard
chien joanna
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18 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
四邊形 ABCD~四邊形 A'B'C'D',且 A、B、C、D 的對應點分別為 A'、B'、C'、D', 若 2∠A:3∠B=4:9,3∠B:5∠C=6:5,∠D=87°,則∠B'-∠A'=?
21°
42°
52°
63°
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
下列敘述何者不正確?
兩多邊形相似,則對應邊成比例
兩多邊形相似,則對應角相等
對應邊成比例的兩多邊形必相似
對應角相等的兩正多邊形必相似
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
下列各圖形中哪一個四邊形與圖的四邊形相似?
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
下列何者不為兩個三角形相似的定理?
SSS
AA
SSA
SAS
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
將圖的六邊形 ABCDEF 縮放 112%後得到一六邊形 A'B'C'D'E'F', 則下列敘述何者錯誤?
縮放後的六邊形與原六邊形的對應邊成比例
∠C 的對應角∠C' 也放大 112%
縮放後的六邊形周長是原六邊形周長的 112%
縮放後的六邊形其內角和不改變
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
如圖,已知△ABC,則下列四個三角形中,哪一個與△ABC 相似?
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
如圖,將長方形 ABCD 縮放若干倍後,得到長方形 AEFG,則長方形 ABCD 是 長方形 AEFG 的幾倍縮放圖?
2倍
3倍
4倍
5倍
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