[" Find the number of integral points (both the coordinates "],[" should be integer) exactly in the interior of the triangle with "],[" vertices "(0,0)(0,21)" and "(21,0).]

The number of integral points (integral point means both the coordinates should be integer) exactly in the interior of the triangle with vertices (0,0), (0,21) and (21,0) is

The number of integral points (integral point means both the coordinates should be integers )exactly in the interior of the triangle withvertice(0,0), (0,21) and (21,0) is

Number of integral points (integral points means both the co-ordinates should be integer) exactly in the interior of the triangle with vertices (0,0),(0, 21) and (21, 0) is

The number of integral points (integral points means both the coordinates of the point should be integer) exactly in the interior of the triangle with vertices (0,0),(0,21) and (21,0) is

Number of integral points (integral points means both the co-ordinates should be integer) exactly in the interior of the triangle with vertices (0,0),(0,15) and Or(15,0) is

Number of integral points (integral points means both the co-ordinates should be integer) exactly in the interior of the triangle with vertices (0,0),(0, 15) and Or (15, 0) is

The number of points, having both coordinates are integers, that lie in the interior of the triangle with vertices (0,0), (0,41) and (41, 0) is

The number of points, having both coordinates are integers, that lie in the interior of the triangle with vertices (0,0), (0,41) and (41, 0) is