
翰林國小數學 - 6上CH8 - 放大、縮小與比例尺
Quiz
•
Mathematics
•
6th Grade
•
Practice Problem
•
Hard
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10 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
影印機上的80%鍵表示影印後是原圖的幾倍縮小圖?
0.8倍
0.5倍
1倍
1.2倍
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
在影印機上,按125%鍵後,原圖上90度的角會變成幾度?
180度
45度
270度
90度
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
在比例尺是1:1000的地圖上,底6公分、高4公分的三角形土地,實際的面積是幾平方公尺?
6000 m²
12000 m²
8000 m²
15000 m²
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
甲圖是乙圖的2倍放大圖,所以乙圖的對應角的角度會有什麼改變?
對應角的角度不會改變。
對應角的角度會變成90度。
對應角的角度會減少。
對應角的角度會增加。
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
甲正方形是乙正方形的3倍放大圖,甲正方形的邊長是6公分,乙正方形的邊長是多少公分?
5公分
3公分
4公分
2公分
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
比例尺是1:100的縮小圖,表示縮小圖上的長是實際長度的幾倍?
1/50
1/200
1/10
1/100
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
甲圖是半徑2公分的圓,乙圖是半徑4公分的圓,下列哪一個敘述正確?
乙圖的圓面積是甲圖的圓面積的四倍。
甲圖的圓面積是乙圖的圓面積的四倍。
乙圖的圓面積是甲圖的圓面積的兩倍。
甲圖和乙圖的圓面積相等。
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