
九上數學三段-M
Authored by 蔡佩旻 蔡佩旻
Mathematics
9th Grade
Used 1+ times

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15 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
15
13
12
20
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
坐標平面上直線4x+3y=12交x軸於A點,交y軸於B點。若O為原點,I為△AOB之內心,則△AIB的面積=?
2
5/2
4
5
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
18
24
36
48
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
△ABC中,∠C=90°,且△ABC的重心到外心的距離為2 cm,則=?
6 cm
8 cm
10 cm
12 cm
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
在△ABC中,∠B=90°,AB=3,BC=4。若G為其重心,則G點到的距離為多少?
2/5
5/3
4/5
5/6
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
在坐標平面上,△ABC的三頂點坐標分別為A ( 3 , 1 )、B ( -1 , 1 )、C ( -1 , -2 ),則△ABC的內切圓圓心坐標為何?
( 0 , 0 )
( -1.5 , 0 )
( 0 , 1 )
( -0.5 , -1.5 )
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
已知O點為鈍角△ABC的外心,AB=AC=10,BC=16,求△ABC的外接圓半徑=?
25/3
8
8/3
5
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