Question

Помогите решить периметр

Answer 1

250-50:3=90(Голова человека токого роста)

Answer 2

P=2(a+b)
Вот пример на прямоугольнике:
Длина прямоугольника - 5 см
Ширина прямоугольника - 4 см
P=(5+4) × 2=18(cm)
Вот и все)

Answer 3

Perimeter Calculation

To calculate the perimeter of a shape, you need to add up the lengths of all its sides. The formula for finding the perimeter of a shape depends on the specific shape you are dealing with. Here are some common formulas for calculating the perimeter of different shapes:

1. Rectangle: The perimeter of a rectangle is calculated by adding the lengths of all four sides. If the length of one side is 'a' and the length of the adjacent side is 'b', then the perimeter (P) of the rectangle is given by the formula: P = 2(a + b).

2. Triangle: The perimeter of a triangle is calculated by adding the lengths of all three sides. If the lengths of the three sides are 'a', 'b', and 'c', then the perimeter (P) of the triangle is given by the formula: P = a + b + c.

3. Square: The perimeter of a square is calculated by adding the lengths of all four sides. If the length of one side is 'a', then the perimeter (P) of the square is given by the formula: P = 4a.

4. Circle: The perimeter of a circle is called the circumference. It is calculated using the formula: C = 2πr, where 'r' is the radius of the circle and π is a mathematical constant approximately equal to 3.14.

It's important to note that the formulas provided above are general formulas and may not cover all possible shapes. If you have a specific shape in mind, please provide more details so that I can assist you further.