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CBSE Class 11-science Answered

triangles
Asked by | 29 Sep, 2009, 01:16: AM
answered-by-expert Expert Answer

Dear Student

The number of integral points which lie in the interior of the triangle with vertices (0,0) ,(0,21),(21,0) is

a)133

b)190

c)233

d)105

The ans wer is   (b)  190

If the lenght of the edges if the given triangle is "n" then number of integral points in the interior of teh triangle are

(n-2)(n-1)/2=  19X 20/ 2=190

Regards

Team

Topperlearning

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