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Let S be the set of all triangles in the...

Let S be the set of all triangles in the xy-plane, each having one vertex at the origin and the other two vertices lie on coordinate axes with integral coordinates. If each triangle in S has area 50 sq. units, then the number of elements in the set S is

A

9

B

18

C

32

D

36

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The correct Answer is:
D
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