

2025/01/02 外接圓半徑
Presentation
•
Mathematics
•
9th Grade
•
Practice Problem
•
Hard
吳志強 吳志強
Used 3+ times
FREE Resource
7 Slides • 7 Questions
1
例題五 等腰三角形外接圓半徑1—鈍角△
例題六 等腰三角形外接圓半徑2—銳角△
6題選擇+1題塗鴉+部份講義題目 2025 01/02 上課
牛刀小試 9,10
2
3
4
5
Multiple Choice
如圖,O點為等腰△ABC的外心, AB=AC=20,BC=32
,則其外接圓半徑為多少?
325
625
350
225
6
Multiple Choice
如圖,O點為等腰△ABC的外心, AB=AC=10,BC=16
,則其外接圓半徑為多少?
325
625
350
225
7
Multiple Choice
如圖,O點為等腰△ABC的外心, AB=AC=5,BC=8
,則其外接圓半徑為多少?
325
625
350
225
8
9
10
11
Draw
如圖,O點為等腰△ABC的外心, AB = AC =13, BC =10,則其外接圓半徑為多少?
24169
12
Multiple Choice
如圖,O 點為等腰△ABC的外心, AB = AC =15, BC =18,則其外接圓半徑為多少?
875
825
225
425
13
Multiple Choice
如圖,O 點為等腰△ABC的外心, AB = AC =10, BC =12,則其外接圓半徑為多少?
875
825
225
425
14
Multiple Choice
如圖,O 點為等腰△ABC的外心, AB = AC =5, BC =6,則其外接圓半徑為多少?
875
825
225
425
例題五 等腰三角形外接圓半徑1—鈍角△
例題六 等腰三角形外接圓半徑2—銳角△
6題選擇+1題塗鴉+部份講義題目 2025 01/02 上課
牛刀小試 9,10
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