Geometry & Shapes (id: 5b758ad60)

本题目来源于试卷: Geometry & Shapes，类别为 IB数学

[填空题]
The diagram below shows a circle v6n-/ i6d gwmwynon29 of radius 9 cm. The points A, B, ns 3cc4y khrpfc pl-*f,8rg93C and D lie on the circlefcf l-*ycnrg84hsck3rp 3 p,9.



1. Find A C . ≈   
2. 1. Find DĈA.≈   
2. Hence find A C $\hat{B}$ .≈   
3. Find the area of triangle A C D .≈   
4. Hence, or otherwise, find the total area of the shaded region.   

参考答案:
空格1: 17.1±2%  空格2: 30±2%  空格3: 45±2%  空格4: 51.4±2%  空格5: 106±2% 


本题详细解析:

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