[b]Indicators of Competence Achievement : [br][/b][list][*][i]Understanding the surface area of a cube[/i][/*][/list][i][br][/i][b]Working Instruction :[br][/b][list][*][i]Pray before studying.[/i][/*][*][i]Form groups with 3-4 students in each group.[/i][/*][*][i]Discuss the answers to the problems with a group of friends.[/i][/*][*][i]Ask the teacher if you have difficulty.[/i][/*][*][i]Present the results of your discussion in front of the class in each section.[/i][/*][/list][i][br]Note: In this activity there is no send button, students simply answer the question in the answer column provided and the answer will be automatically recorded.[br][br][/i]
1. The shape above called by?
When the cube is opened, it will form a net like the one below.
After observing the applet above, answer the following questions!
2. What are the sides/faces of the cube?
4. How many vertices does the cube have? mention it!
5. How many sides/faces does the cube have? mention it!
6. How do you find the total area of the sides of the cube?
[i][u]Based on the steps you did above, then you can find out the formula for calculating the surface area of a cube.[/u][/i]
If the length of the side of the cube is s, what is the surface area of the cube?