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If each edge of a Cube is increased by 50%, Find the Percentage increase in its Surface Area
by T Santhosh
Updated Jun 25, 2024
If each edge of a Cube is increased by 50%, Find the Percentage increase in its Surface Area
When each edge of a cube is increased by 50%, the percentage increase in surface area can be calculated as follows
Let the original edge length of the cube be a cm.
New measure of the edges after the increase is 3a/2 cm (50% increase)
The total surface area of the original cube is 6a² square cm.
The total surface area of the new cube is 2.25 x 6a² = 13.5a² square cm.
The increase in surface area is 13.5a² - 6a² = 7.5a² square cm.
The percentage increase in surface area is then (7.5a²/6a²) x 100% = 125%
Therefore, the percentage increase in surface area is 125%
Properties of Cube and Impact of Percentage Increase
In mathematics, a cube is a three-dimensional shape with equal edges. Each edge of a cube contributes to its overall volume and surface area. When we talk about increasing the edges of a cube by a percentage, we are exploring how this change affects the cube's properties.
Percentage Increase:
Increasing the edges by a percentage means adding a certain proportion to each edge's length. This concept is fundamental in mathematical calculations involving growth rates, expansions, or adjustments to geometric shapes.
Surface Area Impact:
The surface area of a cube is crucial in various mathematical contexts, such as geometry, engineering, and physics. When the edges of a cube are increased by a percentage, the resulting change in surface area can be significant, impacting calculations related to material usage, heat dissipation, and structural stability.
Volume Considerations:
While this topic focuses on surface area, the concept of increasing cube edges also influences its volume. The volume of a cube is directly proportional to the cube of its edge length. Therefore, any percentage increase in edge length leads to a proportional increase in volume.
Importance:
Beyond the classroom, this mathematical concept has practical relevance. Engineers, architects, and designers often encounter scenarios where they need to calculate the effects of scaling or enlarging structures, and understanding how percentages impact cube properties is essential in such scenarios.
Applications:
Understanding how percentages affect cube properties is vital in many mathematical applications. It forms the basis for concepts like scaling, dimensional analysis, and geometric transformations, which are extensively used in fields like architecture, computer graphics, and mathematical modeling.
