That formula applies to circles only.∏r^2
Surface area is the total area of all the surfaces that make up an object. It is important to determine because it helps us understand the physical properties of an object, such as its size, shape, and characteristics.
To calculate the surface area of an object, you need to find the area of each individual surface and then add them together. This can be done using various mathematical formulas depending on the shape of the object.
The most common units used to measure surface area are square units, such as square meters, square inches, or square feet. Other units, such as acres or hectares, may also be used for larger areas.
Surface area is the measurement of the outer surface of an object, while volume is the measure of the space inside an object. Surface area is a two-dimensional measurement, while volume is a three-dimensional measurement.
Determining surface area can be useful in various real-life situations, such as calculating the amount of material needed to cover a surface, determining the amount of paint needed for a wall, or calculating the surface area of a human body for medical purposes.