점 I가 △ABC의 내심일 때, ∠x의 크기를
구하면?
내심 퀴즈
Quiz
•
Mathematics
•
8th Grade
•
Medium
박진일 박진일
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5 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 20 pts
점 I가 △ABC의 내심일 때, ∠x의 크기를
구하면?
10
15
20
30
2.
MULTIPLE CHOICE QUESTION
3 mins • 20 pts
점 I가 △ABC의 내심일 때, ∠x의 크기를
구하면?
100
110
115
120
3.
MULTIPLE CHOICE QUESTION
3 mins • 20 pts
점 I가 △ABC
의 내심일 때, 다음 보기 중에서
옳지 않은 것을 고르면?
AD=AF
IA=IB=IC
ID=IE=IF
∠IBD=∠IBE
4.
MULTIPLE CHOICE QUESTION
3 mins • 20 pts
△ABC의 내심 I를 지나고 BC
에 평행한 직선이 AB, AC와 만나는 점을 각각 D,
E라고 하자. AB=4 cm, BC=7 cm, AC=6 cm
일 때, △ADE의 둘레의 길이를 구하면?
8cm
9cm
10cm
11cm
5.
MULTIPLE CHOICE QUESTION
3 mins • 20 pts
두 점 O와 I는 각각 △ABC의 외심과
내심이다. ∠BIC=110도 일 때, ∠BOC의 크기를
구하면?
70도
80도
90도
100도
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