The moment of inertia of an angle cross section can be found if the total area is divided into three, smaller ones, A, B, C, as shown in the figure below. The final area, may be considered as the additive combination of A+B+C. However, a more straightforward calculation can be achieved by the combination (A+C)+(B+C)-C.

If you know the lengths of all sides ( a, b, and c) of a triangle, you can compute its area: Calculate half of the perimeter ½(a + b + c). Denote this value by s. Compute s - a, s - b, and s - c. Multiply the three numbers from Step 2. Multiply the result by s. Take the square root of the result.

The surface area of a closed cylinder can be calculated by summing the total areas of its base and lateral surface: base SA = 2πr 2. lateral SA = 2πrh. total SA = 2πr (r + h) where r is the radius and h is the height. Jeremy has a large cylindrical fish tank that he bathes in because he doesn't like showers or bathtubs.

The total surface area of a triangular prism is the sum of the areas of all its faces: the three lateral faces (rectangles) and two bases (triangles). The most general formula for the surface area of any prism is: Total area = Lateral area + 2 × Base area. It depends on the data you're given as to how to proceed to determine both the lateral ...

Our surface area calculator can find the surface area of seven different solids. The formula depends on the type of solid. Surface area of a sphere: A = 4πr², where r stands for the radius of the sphere. Surface area of a cube: A = 6a², where a is the side length. Surface area of a cylinder: A = 2πr² + 2πrh, where r is the radius and h is the height of the cylinder.

In such a triangle, the legs are equal in length (as a hypotenuse always must be the longest of the right triangle sides): a=b a = b. One leg is a base, and the other is the height – there is a right angle between them. So the area of an isosceles right triangle is: \text {area}=\frac {a^2} {2} area = 2a2.

Examples: find the area of a triangle. Example 1: Using the illustration above, take as given that b = 10 cm, c = 14 cm and α = 45°, and find the area of the triangle. In this case the SAS rule applies and the area can be calculated by solving (b x c x sinα) / 2 = (10 x 14 x sin (45)) / 2 = (140 x 0.707107) / 2 = 99 / 2 = 49.5 cm 2.

Area calculator to find the surface area of the following shapes - rectangle, triangle, circle, sector, ellipse, trapezoid, and parallelogram. ... If the sector is defined through an angle in radians, the surface area can be calculated as follows: A = (angle/2) × r² ...

A sector of a circle is essentially a proportion of the circle that is enclosed by two radii and an arc. Given a radius and an angle, the area of a sector can be calculated by multiplying the area of the entire circle by a ratio of the known angle to 360° or 2π radians, as shown in the following equation: area =. θ. 360.

Surface Area (A): sq. units. Volume (V): cu. units. The following algorithms are included in this calculator: Volume of a Triangular Prism (V) = 1/2*b*h*l. Side (s) = √ ( (b/2)2 + h2) Surface Area of a Triangular Prism (A) = b* (h + l) + 2*l*s. With the help of this calculator, you can find the unknown variables of a triangular prism.