What is the sum of the measures of the interior of any triangle

Acircle has a diameter will endpoints of (-2,8) and (6, 4). what is the center of the circle

Plz determine whether the polynomial is a difference of squares and if it is, factor it. y2 – 196 is a difference of squares: (y + 14)2 is a difference of squares: (y – 14)2 is a difference of squares: (y + 14)(y – 14) is not a difference of squares

The acceleration of an object due to gravity is 32 feet per second squared.what is acceleration due to gravity in inches per second squared?