The edge of a cube is 9a cm. Find its surface? Select
A) 153a2 cm2
B) 143a2 cm2
C) 233a2 cm2
D) 243a2 cm2
E) 253a2 cm2
6a2 = 6 * 9a * 9a = 243a2   Answer:243a2 cm2
<result>D</result>
The edge of a cube is 9a cm. Find its surface?