exam Maths Puzzle Numerical Ability

On a standard die, the dots on the opposite faces have a sum of 7. How many different sums of dots on three adjacent faces are there on this standard die?

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exam Other Question

A conical shaped container is made from a circular piece of paper. It has a base radius of 9cm and a height of 12cm. What is the circumference of the original circle in centimatres? i am having trouble understanding these types of questions..can you help?

length of the major axis of the ellipse 3x^2+2y^2=6 is __________?

this is a problem we had in our class to be reviewed tomorrow..thanks.