Explanation: if you have the value of all the sides of a rectangular prism, multiply each number by each other , then by 2. Finally add all of them together 2(9*3)=2(27)=54 2(8*3)=2(24)=48 2(9*8)=2(72)=144 54+48+144=246
The litosphere is the earth's outermost layer. This is not a whole continuous piece as its crust and topmost mantle is made up of hard and rocky outer surface and is sub divided into tectonic plates. The lithosphere stretches to about 60 miles.
