Question

Как найти площадь и периметр треугольника?

Answer 1

На сколько можно быть тупым))))

Answer 2

А-длина
b-ширина
Формула:
Р=а+а+b+b
S=а*b

Answer 3

Finding the Area and Perimeter of a Triangle

To find the area and perimeter of a triangle, you can use the following formulas and methods:

Perimeter (P): The perimeter of a triangle is the sum of the lengths of its three sides. It can be calculated using the formula: P = a + b + c, where a, b, and c are the lengths of the three sides of the triangle.

Area (S): The area of a triangle can be calculated using different methods, such as: 1. Using the lengths of the sides: - If you know the lengths of the three sides of the triangle, you can use Heron's formula to calculate the area: S = √(p * (p - a) * (p - b) * (p - c)), where p = (a + b + c) / 2 and a, b, and c are the lengths of the sides. 2. Using the base and height: - If you know the base and height of the triangle, you can use the formula: S = (base * height) / 2. 3. Using other geometric properties: - The area of a triangle can also be calculated using the formula S = 1/2 * base * height or S = (a * h) / 2, where a is the base and h is the height.

Example Calculations

1. Example 1: - Given: Side lengths a = 9, b = 20, and c = 30. - Using the perimeter formula: P = 9 + 20 + 30 = 59. - Using Heron's formula for area: S = √(59 * (59 - 9) * (59 - 20) * (59 - 30)) = 270.

2. Example 2: - Given: Side lengths a = 5, b = 7, and c = 9. - Using the perimeter formula: P = 5 + 7 + 9 = 21. - Using Heron's formula for area: S = √(21 * (21 - 5) * (21 - 7) * (21 - 9)) = 20.615.

3. Example 3: - Given: Side lengths a = 6, b = 8, and c = 10. - Using the perimeter formula: P = 6 + 8 + 10 = 24. - Using the base and height method: S = (6 * 8) / 2 = 24.

These examples demonstrate different methods for calculating the perimeter and area of a triangle based on the given information.

For more detailed information and additional methods for calculating the area and perimeter of a triangle, you can refer to the provided sources.

If you have specific measurements or a particular type of triangle in mind, feel free to provide more details for a more tailored explanation.