`2,9,28,65,?`

2,9, 28, ? 126, 217, 344

Find the coordinates of centorid G of ABC, if (i) A(8,9),B(4,5),C(6,2) (ii) A(11,8), B(-6,5), C(1,-28)

Evaluate |(2,7,65),(3,8,75),(5,9,86)| .

A square is inscribed in the circle x^2+y^2-2x+4y-93=0 with its sides parallel to the coordinate axes. The coordinates of its vertices are (-6,-9),(-6,5),(8,-9),(8,5) (-6,-9),(-6,-5),(8,-9),(8,5) (-6,-9),(-6,5),(8,9),(8,5) (-6,-9),(-6,5),(8,-9),(8,-5)

A square is inscribed in the circle x^2+y^2-2x+4y-93=0 with its sides parallel to the coordinate axes. The coordinates of its vertices are (-6,-9),(-6,5),(8,-9),(8,5) (-6,-9),(-6,-5),(8,-9),(8,5) (-6,-9),(-6,5),(8,9),(8,5) (-6,-9),(-6,5),(8,-9),(8,-5)

7.2, 72, 9, 54, 13.5, 28