một nhóm có 6 người với 6 tên khác nhau. mỗi người viết tên một người khác trong nhóm một cách ngẫu nhiên. tính xác suất để có 2 người trong nhóm viết tên của nhau

the sum of the lengths of any two sides of a triangle is greater than the length of the third side. if you take the three sides of a triangle and add them in pairs, the sum is greater than (not equal to) the third side. if that is not true, then it is not possible to construct a triangle with the given side lengths.

step-by-step explanation:

it could be 1,3 and more others to create a cylinder.

step-by-step explanation:

the height of the surface increases from the center out to the sides of the road.

step-by-step explanation:

as we move out we move away from the x-axis.

and as mentioned in the problem statement that height of a road increases when we move away from the center x.

hence proved that 3rd option

the height of the surface increases from the center out to the sides of the road.

is the correct option.