<span>Using the formula 1/2*b*h for the area of a triangle, we get 7.8 cm^2 as the area of the base. Now let us assume that the three faces of the pyramid are of the same dimensions. So by subtracting 7.8 from the total surface area and dividing by 3, we get a face area of 29.6 cm^2. We get a height of 19.73 cm (using a "base" of 3 cm). Using half of the face of the pyramid (a right triangle) and applying some trigonometry (19.73 cm/sin 60) we get 22.78 cm as the slant height of the pyramid.</span>
The level of the oceans' surface is known as the sea level. Sea level is also used to measure the height of certain cities. For example, Big Bear, CA is <span> 6,750 feet above sea level.</span>
Revolution means going around some point: Earth moves around its axis once per day and around the Sun once per year.
I am assuming here that you mean the revolution around the sun (around its own axis would be 360 degrees a day, a full circle, but the phrase is more commonly used to describe movement around the sun).
it revolves a full circle each year, that is 364 days. So each day it makes 360/364 Degress, that is approximately one degree per day - the answer is 1)
