縮放與相似

縮放與相似

9th Grade

18 Qs

quiz-placeholder

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縮放與相似

縮放與相似

Assessment

Quiz

Mathematics

9th Grade

Hard

Created by

chien joanna

Used 1+ times

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18 questions

Show all answers

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

Media Image

下列各圖形中哪一個四邊形與圖的四邊形相似?

Media Image
Media Image
Media Image
Media Image

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

Media Image

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

Media Image

如圖,已知△ABC,則下列四個三角形中,哪一個與△ABC 相似?

Media Image
Media Image
Media Image
Media Image

7.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Media Image

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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