To construct a regular octagon, what measure would be necessary for each interior angle? Construct an angle of that measure.

Step-by-step explanation:

Given that, a regular octagon is to be constructed.

To find:

Each angle in the octagon = ?

Solution:

We know that a regular triangle (polygon with 3 sides) has an interior angle of .

And a regular quadrilateral (square) has an interior angle of .

Therefore, formula for interior angle of a regular polygon with number of sides can be given as:

For an octagon, we have .

Value of Interior angle in a regular octagon:

Kindly refer to the attached image for the angle of

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.