Question

Прямокутник це?дам 30 балів!!​

Answer 1

Ответ:Прямоку́тник — це чотирикутник, усі кути якого прямі. Протилежні сторони прямокутника рівні. Є окремим випадком паралелограма. Також його можна визначити як чотирикутник із чотирма однаковими кутами, оскільки це означатиме, що всі його кути будуть прямими

Объяснение:

Answer 2

What is a rectangle?

A rectangle is a geometric shape that has four sides and four right angles. It is a quadrilateral with opposite sides that are equal in length and parallel to each other. The opposite sides of a rectangle are also perpendicular to each other. The sum of the interior angles of a rectangle is always 360 degrees.

Rectangles are commonly encountered in everyday life, such as in buildings, furniture, and paper. They have several properties that make them useful in various applications, including their symmetry, regularity, and ease of calculation.

Properties of a Rectangle

1. Four Sides: A rectangle has four sides, which are all straight lines. 2. Right Angles: All four angles of a rectangle are right angles, measuring 90 degrees. 3. Opposite Sides: The opposite sides of a rectangle are equal in length and parallel to each other. 4. Diagonals: The diagonals of a rectangle are equal in length and bisect each other. 5. Symmetry: A rectangle has two lines of symmetry, one vertical and one horizontal, which divide it into four congruent quadrants. 6. Area: The area of a rectangle can be calculated by multiplying the length of one side (base) by the length of an adjacent side (height). The formula for the area of a rectangle is: Area = Length x Width. 7. Perimeter: The perimeter of a rectangle is the sum of all its sides. For a rectangle with sides of length L and W, the perimeter is given by: Perimeter = 2L + 2W.

Example:

Let's consider a rectangle with a length of 5 units and a width of 3 units. Using the formulas mentioned above, we can calculate its area and perimeter.

- Area: Area = Length x Width = 5 x 3 = 15 square units. - Perimeter: Perimeter = 2L + 2W = 2(5) + 2(3) = 10 + 6 = 16 units.

So, for this particular rectangle, the area is 15 square units, and the perimeter is 16 units.

Conclusion

In summary, a rectangle is a quadrilateral with four right angles, opposite sides that are equal in length and parallel, and diagonals that are equal in length and bisect each other. It has several properties, including symmetry, regularity, and formulas for calculating its area and perimeter. Rectangles are widely used in various fields, and their properties make them useful for many applications.