## What is the formula for area and perimeter?

Area and Perimeter Formula Chart

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

## What is the area of the rectangle?

Area of Rectangle Formula

The formula for the Area of a Rectangle
The perimeter of a Rectangle P= 2(l + b)
Area of a Rectangle A = l × b

## How do you find area and perimeter?

Divide the perimeter by 4: that gives you the length of one side. Then square that length: that gives you the area. In this example, 14 ÷ 4 = 3.5. (3.5)² = 12.25 square feet.

## How do I figure out a percentage of two numbers?

If you want to know what percent A is of B, you simple divide A by B, then take that number and move the decimal place two spaces to the right. That’s your percentage! To use the calculator, enter two numbers to calculate the percentage the first is of the second by clicking Calculate Percentage.

## How is Katha measured?

In Bangladesh, one katha is standardized to 720 square feet (67 m2), and 20 katha equals 1 bigha. In Nepal, it is equivalent to 338.63 m² (3,645 ft²). In the Indian state of Bihar, one katha may vary from 750 ft² to 2000 ft². Also this can be 32 by 30 feet in length and breadth respectively.

720 Square Feet

## How do we find area?

To find the area of a rectangle, multiply its height by its width. For a square you only need to find the length of one of the sides (as each side is the same length) and then multiply this by itself to find the area.

## How do you find a perimeter?

The perimeter is the length of the outline of a shape. To find the perimeter of a rectangle or square you have to add the lengths of all the four sides. x is in this case the length of the rectangle while y is the width of the rectangle. The area is measurement of the surface of a shape.

## How do you find 25%?

If you have to turn a percentage into a decimal, just divide by 100. For example, 25% = 25/100 = 0.25. To change a decimal into a percentage, multiply by 100. So 0.3 = 0.3 × 100 =30% .

## How do we find area of a triangle?

The area A of a triangle is given by the formula A=12bh where b is the base and h is the height of the triangle.

## What is perimeter used for?

Perimeter is a measurement of the distance around a shape and area gives us an idea of how much surface the shape covers. Knowledge of area and perimeter is applied practically by people on a daily basis, such as architects, engineers, and graphic designers, and is math that is very much needed by people in general.

## What is percentage of number?

In mathematics, a percentage is a number or ratio that represents a fraction of 100. It is often denoted by the symbol “%” or simply as “percent” or “pct.” For example, 35% is equivalent to the decimal 0.35, or the fraction. 35.

## What is perimeter simple explanation?

more The distance around a two-dimensional shape. Example: the perimeter of this rectangle is 3+7+3+7 = 20. The perimeter of a circle is called the circumference.

## What is a formula of perimeter of rectangle?

The perimeter of a rectangle is the total length of all the sides of the rectangle. Hence, we can find the perimeter by adding all four sides of a rectangle. Perimeter of the given rectangle is a + b + a + b.