Surface Area of Cube

side = 20

Answer:

2400.0 square units

Shape Visualization

Cube with side length 20 units

Step-by-Step Solution

1

Identify the formula for surface area of a cube

SA = 6 × side²
2

Square the side

side² = 20² = 400
3

Multiply by 6 faces

6 × 400 = 2400.0
4

Final answer

Surface Area = 2400.0 square units

Formula Used

SA = 6 × side²

This formula calculates the surface-area of a cube.

Real-World Applications

1

Painting a 20m cube requires 2400.0 square meters of paint

2

Wrapping a 20 inch cube gift needs 2400.0 square inches of paper

Understanding Cube Surface area

The surface area of a cube is a fundamental concept in geometry. Surface area measures the total area of all surfaces of a 3D object, expressed in square units.

By using the formula SA = 6 × side², we can quickly and accurately calculate the surface area for any cube when we know the required measurements.

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