![]() You need just two measurements: the diameter of the base and it's height, but the calculus is more involved than most of the other simple bodies. The surface area of a cone is one of the most complicated and it is where the need for a calculator becomes more apparent. The surface area formula for a cone, given its diameter (or radius) and height is π x (diameter / 2) 2 + π x (diameter / 2) x √ ((diameter / 2) 2 + (height 2)), where (diameter / 2) is the radius of the base (d = 2 x r), so another way to write it is π x radius 2 + π x radius x √ (radius 2 + (height 2)), as seen in the figure below: To find the SA simply multiply 4 times 3.14159 times the radius square. π is, of course, the well-known mathematical constant, about equal to 3.14159. The Surface Area of a Prism Formula is given as, Surface Area Of A Rectangular Prism is A 2 (wl + lh + hw) Surface Area Of A Triangular Prism is A bh + L (s1 + s2 + s3) Where, a apothem length of the prism. Visual on the figure below:Ī sphere's surface area can be calculated just by knowing its diameter, or radius (diameter = 2 x radius). The surface area of a prism is measured in terms of square units. The surface area formula for a sphere is 4 x π x (diameter / 2) 2, where (diameter / 2) is the radius of the sphere (d = 2 x r), so another way to write it is 4 x π x radius 2. In a simplified form, this formula is (base x height). You can calculate the area of the top and base triangles in a prism by using the formula 2 × (1/2 × base of the triangle × height of the triangle). to find the surface area of a cube with a side of 3 inches is to multiply 3 x 6 = 18 square inches. These steps are as follows: Step 1: Calculate the area of the top and base triangles in the prism. ![]() side 2 is the surface of one of the sides, and since the cube has 6 equal sides, multiplying by 6 gives us the total cube surface area. This calculation requires only one measurement, due to the symmetricity of the cube. The surface area formula for a cube is 6 x side 2, as seen in the figure below: The formula for the surface area of a triangular prism is written as: Surface area of a triangular prism S (2 x Base area) + (Base perimeter x Height of the prism) S 2A + PL. ![]() The surface area is expressed in square units. The result from our surface area calculator will always be a square of the same unit: square feet, square inches, square meters, square cm, square mm. The surface area of a triangular prism is equal to the sum of the area of tree lateral surfaces and the two bases. In all surface area calculations, make sure that all lengths are measured in the same unit, e.g. Below are the formulas for calculating surface area of the most common body types. How to calculate the surface area of a body?ĭepending on the type of body, there are different formulas and different required information you need to calculate surface area (a.k.a.
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