which diagram is a net for the cube? what is the surface area of the cube? square millimeters
which diagram is a net for the cube? what is the surface area of the cube? square millimeters
Answer
Explanation:
Step1: Recall cube - net property
A cube net is a 2 - D shape that can be folded to form a 3 - D cube. Both of the given diagrams are valid nets for a cube as they are composed of 6 congruent squares which can be folded to form a cube.
Step2: Recall surface - area formula for a cube
The surface - area formula of a cube with side length (s) is (SA = 6s^{2}). Given (s = 20) mm.
Step3: Calculate the surface area
Substitute (s = 20) into the formula: (SA=6\times(20)^{2}=6\times400 = 2400) square millimeters.
Answer:
2400