Surface Area = pi*r*s + pi*r*r = 3.14*2*9 + 3.14*2*2
_ 9 9 9 .9
17
A = S squared is the formula for area of a square A = area S = lenght of side
The area of square is : 380.25
No because 2 times 10 equals 20 and 3 times 9 equals 27.
99+9/9
31.5 square units
31.5 Square Units
s=4
r=9yd
9 P. in the S. S. equals 9 planets in the solar system EDIT: Which is no longer the case, as Pluto has now been classified as a dwarf planet.