CBSE Class 11-science Answered
triangles
Asked by | 29 Sep, 2009, 01:16: AM
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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