find the total surface area of cube whose side is 25 cm
Find the total surface area of a cube whose side is 25 cm
Answer: To find the total surface area of a cube, you need to know the length of one side of the cube. The formula for the total surface area (TSA) of a cube is:
\text{TSA} = 6a^2
where ( a ) is the length of a side of the cube.
Given that the side length ( a ) is 25 cm, we can plug this value into the formula:
\text{TSA} = 6 \times (25 \, \text{cm})^2
First, calculate the area of one face of the cube:
(25 \, \text{cm})^2 = 625 \, \text{cm}^2
Next, multiply this area by 6 (since a cube has 6 faces):
\text{TSA} = 6 \times 625 \, \text{cm}^2 = 3750 \, \text{cm}^2
Therefore, the total surface area of a cube whose side is 25 cm is:
\boxed{3750 \, \text{cm}^2}