A triangle is formed by the coordinates `(0,0) , (21,0) and (0,21).` Then the number of integral coordinates strictly the triangle is-

Triangle is formed by the co-ordinates (0, 0), (0, 21) and (21, 0). Find the number of integral co-ordinates strictly inside the triangle (integral co-ordinates has both x and y) :

A triangle is formed by points (6,0) , (0,0) and (0,6) . How many points with the integer coordinates are in the interior of the triangle ?

The vertices of a triangle are (3, 0), (3, 3) and (0, 3). Then the coordinates of the circumcentre are :

The vertices of a triangle are O(0,0),A(a,0) and B(0,b). Write the coordinates of its circumcentre.

in fig.triangle AOB with coordinates of A and O as (4,0) and (0,0),AB=5. find the coordinates of B

In the fig. triangle with coordinats A and O as (4,0) and (0,0) and AB=5. find the coordinate of B.

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

The coordinates of the vertices of a triangle are ( 4 , 6 , 0) ,( 0 , - 3 , 7) and ( - 4 , 0 , -1) , then the coordinates of the centroid of the triangle are _