1. Teacher's Notes Topic: Surface Area / Volume L6/8 What if areaof a face= 25a² ? = 7 ? = b ? Cube (a) Write an expression for the total surface area of the cube. Write your answer as simply as possible. Look at the cube. The area of a face of the cube is 9 x 2 (b) Write an expression for the volume of the cube. Write your answer as simply as possible. What if areaof a face= 25a² ? = 7 ? = b ?

2. Look at the cube. The area of a face of the cube is 9 x 2 (a) Write an expression for the total surface area of the cube. Write your answer as simply as possible. Cube

3. (b) Write an expression for the volume of the cube. Write your answer as simply as possible.