ICSE Class X Math 2013 Solved Paper

AB is a diameter of a circle with centre C= (−2,5) . If A=(3,−7) . Find:

Question : 10

Total: 46

The length of radius AC

Solution:

The length of radius AC
‌=√(−2−3)2+(5+7)2
‌=√(−5)2+(12)2
‌=√25+144
‌=√169
‌=13.

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