What is the formula for all shapes?
Table of Contents
What is the formula for all shapes?
Formula for geometrical figures
| Shape | Formula | |
|---|---|---|
| ◻ | Square | 4 × side |
| ⎕ | Rectangle | 2 × (length + width) |
| ▱ | Parallelogram | 2 × (side1 + side2) |
| △ | Triangle | side1 + side2 + side3 |
How do you find the area of mixed shapes?
Summary: Find the missing lengths around your L shape and divide the shape into 2 rectangles. Find the area of both rectangle and add them up to give the total area of the compound shape.
How do you find the area and perimeter of all shapes?
To find the perimeter, add together the lengths of the sides. Start at the top and work clockwise around the shape. Area of Polygon = (Area of A) + (Area of B) To find the area, divide the polygon into two separate, simpler regions.
How do you find the area and volume of a different shape?
Whereas the basic formula for the area of a rectangular shape is length × width, the basic formula for volume is length × width × height. How you refer to the different dimensions does not change the calculation: you may, for example, use ‘depth’ instead of ‘height’.
How do you find the area of a rectangle with 4 unequal sides?
To find the area of a rectangle, you need two measurements: the width, or base (the longer side of the rectangle), and the length, or height (the shorter side of the rectangle). Then, just multiply them together to get the area. In other words: Area = base × height, or A = b × h for short.
What is the perimeter of all shapes?
Perimeter Formulas
| Geometric Shape | Perimeter Formula | Metrics |
|---|---|---|
| Triangle | a + b + c | a, b and c being the side lengths |
| Rectangle | 2(Length + Width) | |
| Square | 4a | a =Length of a side |
| Trapezoid | a + b + c + d | a, b, c, d being the sides of the trapezoid |
How do you find the area of a 8 sided shape?
Since there are as many of these triangles as the polygon has sides (eight for an octagon), you have to multiply the area of this triangle by the number of sides. You will obtain the total area of the octagon: area of octagon = 8 * base * height / 2 = perimeter * apothem / 2 .
What is the formula for the area of different shapes?
Learn the formula that gives the area of the shape you are working with. For example, if you are finding the area of a rectangle, the formula you need is A = l x w. In words, the formula says “area equals the length times the width.”. Measure the dimensions required in the formula you are using.
What is the formula for finding the area of?
The formula to find the area of a sector is A = N/360 x (pi x r^2). A sector is a section of a circle. In the formula given, A is the area of the sector, N is the degree of the central angle of the sector, pi is an irrational number that can be rounded to 3.14, and r is the length of the radius of the circle.
How do you find the area of different figures?
To find the area of a square or rectangle, just multiply the width of the shape by its height. To find the area of a circle, start by measuring the distance between the middle of the circle to the edge, which will give you the radius. Then, square the radius and multiply it by pi to find the area.
Geometric Shapes Volume = π r 2 h Lateral Surface Area = 2 π rh Top Surface Area = π r 2 Bottom Surface Area = π r 2 Total Surface Area = L + T + B = 2 π rh + 2 ( π r 2) = 2 π r (h+r)