An expandable pattern is used in

The shape factor for a casting in the form of an annular cylinder of outside diameter $$30$$ $$cm,$$ inside diameter $$20$$ $$cm$$ and height $$30$$ $$cm$$ (correction factor $$k=1.0$$) will be

Which one of the following is Not associated with vector calculus?

Two dice are thrown simultaneously. The probability that the sum of numbers on both exceeds $$8$$ is