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108-1_7上_數學3

Authored by Rusber Ru

Mathematics

7th Grade

Used 5+ times

108-1_7上_數學3
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32 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

正三角形對稱軸的個數為a,等腰三角形對稱軸個數為b,長方形的對稱軸個數為c,則abc=?

4

5

6

7

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

下列三個圖形中有幾個是線對稱圖形?

0

1

2

3

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

如圖,甲、乙、丙、丁均是由正方形組成的圖形,這四個圖中,哪些是線對稱圖形?

乙、丁

甲、乙

乙、丙

甲、丁

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

在等腰三角形中, AB\overline{AB}  AC\overline{AC}  AD\overline{AD} 為其對稱軸,D在上,若∠BAD=35°,則∠C=?

70°

65°

60°

55°

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

對稱軸與對稱兩點間的連線有什麼性質?

互相交叉

互相重合

互相平行

互相垂直

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

如圖,矩形ABCD內有一個圓,則其對稱軸為何?

LM兩條

MN兩條

L、 BD\overline{BD} 兩條

只有M一條

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

同一平面上, AB\overline{AB} 的垂直平分線有幾條?

1

2

3

4

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