Question 1

一個三角形中，任意兩內角的和大於第三個內角，則此三角形為下列何種三角形？

Accepted Answer

銳角三角形

Answer

以上皆有可能

Answer

直角三角形

Answer

鈍角三角形

Question 2

圖中正方形有 a 個，菱形有 b 個，平行四邊形有 c 個，則 a + b - c = ？

Accepted Answer

-1

Answer

0

Answer

3

Answer

2

Question 3

當時鐘在 9 點 30 分時，時針與分針所夾的角為何？

Accepted Answer

鈍角

Answer

直角

Answer

銳角

Answer

兩指針重疊

Question 4

下列何者為銳角三角形的定義？

Accepted Answer

每一個角都小於直角

Answer

三個邊都不等長

Answer

每個角都是直角

Answer

有一個角小於直角

Question 5

圖中有幾個線對稱圖形？

Accepted Answer

3

Answer

1

Answer

2

Answer

4

Question 6

下列那一個圖形不是線對稱圖形？

Accepted Answer

平行四邊形

Answer

矩形

Answer

等腰梯形

Answer

菱形

Question 7

圖(一)中，四邊形 ABCD 為正方形，若分別以 $\overline{BD}$、$\overline{BC}$、$\overline{CD}$ 為直徑畫三個半圓，如圖(二)所示，判斷圖(二)中那一個線段是該圖形的對稱軸？

Accepted Answer

$\overline{AC}$

Answer

$\overline{AB}$

Answer

$\overline{BD}$

Answer

$\overline{BC}$

Question 8

小明畫了一個圖形，如圖，若以直線 L 及直線 M 為對稱軸完成線對稱圖形後，則呈現出來的圖形為下列何者？

Accepted Answer

https://uploads.quizalize.com/bbea196c-37f9-40f5-baf7-8dfe3f0a7720/question/cadac077504d6e7f07bbf72b94a18e3b56b8bbeb.jpg

Answer

https://uploads.quizalize.com/bbea196c-37f9-40f5-baf7-8dfe3f0a7720/question/7638be87b432f5d2b19e31fbf87d5ec453d68af6.jpg

Answer

https://uploads.quizalize.com/bbea196c-37f9-40f5-baf7-8dfe3f0a7720/question/8a411f0167bc421a9b498457c0b58f88c9d2d100.jpg

Answer

https://uploads.quizalize.com/bbea196c-37f9-40f5-baf7-8dfe3f0a7720/question/5967933713616b7a85fdbafa64b154091ad0aefb.jpg

Question 9

將一正方形紙張，按圖中步驟對摺後，沿虛線剪下，則攤開後紙張圖形應為下列何者？

Accepted Answer

https://uploads.quizalize.com/bbea196c-37f9-40f5-baf7-8dfe3f0a7720/question/9b1f44939371b1f6b0147fd65d5782db3ddf4261.jpg

Answer

https://uploads.quizalize.com/bbea196c-37f9-40f5-baf7-8dfe3f0a7720/question/229fdd50facc95a4f28baffc55884e87e6fc1fee.jpg

Answer

https://uploads.quizalize.com/bbea196c-37f9-40f5-baf7-8dfe3f0a7720/question/98f03be4e1ad1c391f7cede55c782f54a486c655.jpg

Answer

https://uploads.quizalize.com/bbea196c-37f9-40f5-baf7-8dfe3f0a7720/question/3be9abbfd8012acc271373583c70de8ca77cfd2e.jpg

Question 10

將一正方形色紙按圖(一)步驟對摺，若小華想剪出如圖(二)的圖形，則他該怎麼剪？

Accepted Answer

https://uploads.quizalize.com/bbea196c-37f9-40f5-baf7-8dfe3f0a7720/question/f3e9081793b691715e8d86313d14a4ac0f401f36.jpg

Answer

https://uploads.quizalize.com/bbea196c-37f9-40f5-baf7-8dfe3f0a7720/question/7a9d514a7c3b49ed8b158b9dba2741a326daee70.jpg

Answer

https://uploads.quizalize.com/bbea196c-37f9-40f5-baf7-8dfe3f0a7720/question/d6049ce94a94968f508e69becb31594628328881.jpg

Answer

https://uploads.quizalize.com/bbea196c-37f9-40f5-baf7-8dfe3f0a7720/question/419dca7a030b55b42779afb026ea7693597df743.jpg

Question 11

如圖，小智寫了一個數學算式，若以直線 L 為其對稱軸，此算式所形成的線對稱圖形是一個新算式，則此新算式的答案為何？

Accepted Answer

-33

Answer

24

Answer

57

Answer

-6

Question 12

將一張長方形色紙按圖中步驟摺疊後並剪裁，則展開後的圖形為下列何者？

Accepted Answer

https://uploads.quizalize.com/bbea196c-37f9-40f5-baf7-8dfe3f0a7720/question/0a9669e1f400df2746974ea204254715e3251d3c.jpg

Answer

https://uploads.quizalize.com/bbea196c-37f9-40f5-baf7-8dfe3f0a7720/question/cf41d0eee3ed375b344251decbdb184096d2e7bf.jpg

Answer

https://uploads.quizalize.com/bbea196c-37f9-40f5-baf7-8dfe3f0a7720/question/e5cfb0368c31835de0e2fc67e94ab2b86a80c77f.jpg

Answer

https://uploads.quizalize.com/bbea196c-37f9-40f5-baf7-8dfe3f0a7720/question/9981e411bf137c3abf2a2bb8a3a79b54056c883b.jpg

Question 13

小軒開車在高速公路上，他由後視鏡看到後面來車的車牌號碼如圖，則後面來車的車牌號碼應該是下列那一個？

Accepted Answer

https://uploads.quizalize.com/bbea196c-37f9-40f5-baf7-8dfe3f0a7720/question/706ab8af001743080d5e35ee5c72969518fdf6b1.jpg

Answer

https://uploads.quizalize.com/bbea196c-37f9-40f5-baf7-8dfe3f0a7720/question/aaab2d7f990f3627b7e4e9361ef2bd0c35d9a074.jpg

Answer

https://uploads.quizalize.com/bbea196c-37f9-40f5-baf7-8dfe3f0a7720/question/00885bf2f861c8081c348bbabb65667e01f350af.jpg

Answer

https://uploads.quizalize.com/bbea196c-37f9-40f5-baf7-8dfe3f0a7720/question/093e4392a28bde39096e9d3a1dc8155097db4bf3.jpg

Question 14

如圖，將一正方形紙張對摺，再對摺成一小正方形，然後剪下著色部份圖案，則展開後會是下列那一個圖形？

Accepted Answer

https://uploads.quizalize.com/bbea196c-37f9-40f5-baf7-8dfe3f0a7720/question/1153aaf9b9035acf0db9ee23298db0922adf0e32.jpg

Answer

https://uploads.quizalize.com/bbea196c-37f9-40f5-baf7-8dfe3f0a7720/question/34adbd6f32c67083db9bffc01d6d33b6a25819f1.jpg

Answer

https://uploads.quizalize.com/bbea196c-37f9-40f5-baf7-8dfe3f0a7720/question/090dc43137358cdad1bf161f6c6a68561db669a7.jpg

Answer

https://uploads.quizalize.com/bbea196c-37f9-40f5-baf7-8dfe3f0a7720/question/93a6b68bb563e353407b1499356e14aef3a64d6a.jpg

Question 15

小寶將一張長方形紙張依圖中步驟對摺，然後在上方打洞，則下列何者攤開後的圖形？

Accepted Answer

https://uploads.quizalize.com/bbea196c-37f9-40f5-baf7-8dfe3f0a7720/question/4de667a308f1bd1671135ba1ec8401d56b45d0a3.jpg

Answer

https://uploads.quizalize.com/bbea196c-37f9-40f5-baf7-8dfe3f0a7720/question/9087f585904b593207a930f58d337fe1f6ef266a.jpg

Answer

https://uploads.quizalize.com/bbea196c-37f9-40f5-baf7-8dfe3f0a7720/question/19ff8c9a44d2ad5456ddbb097219a14a098ee6e8.jpg

Answer

https://uploads.quizalize.com/bbea196c-37f9-40f5-baf7-8dfe3f0a7720/question/2e895734e7ca48896fe9d82188f05c9b9ee226b9.jpg

Question 16

七邊形共有多少條對角線？

Accepted Answer

14

Answer

7

Answer

9

Answer

12

Question 17

已知$	riangle$ABC中，$\angle A=25^{\circ}$，$\angle B=55^{\circ}$，則$	riangle$ABC為何種三角形？

Accepted Answer

鈍角三角形

Answer

正三角形

Answer

銳角三角形

Answer

直角三角形

Question 18

下列敘述何者錯誤？

Accepted Answer

銳角三角形只有一個內角為銳角

Answer

正三角形必為等腰三角形

Answer

等腰三角形有兩內角相等

Answer

等邊三角形三內角相等

Question 19

下列敘述何者正確？

Accepted Answer

一個四邊形最多有四個直角

Answer

一個四邊形可以四個角皆為銳角

Answer

每個鈍角三角形中，其內角皆大於 $90^{\circ}$

Answer

一個三角形最多有兩個直角

Question 20

通過相異兩點能畫出幾條直線？

Accepted Answer

1 條

Answer

3 條

Answer

2 條

Answer

無限多條

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