Question

Начертите квадрат,периметр которого равен 12 см.Увеличьте боковые на 1 см 5 мм.Начертите новую фигуру.Какая фигура получилась?вычислите её периметр.​

Answer 1

Ответ:

получился квадрат,сторона которого равна 4 см 5 мм и периметр которого равен 18 см

Пошаговое объяснение:

Р=4а   это периметр квадрата,тогда его сторона а=Р:4=3 см

3см+1 см 5мм=4см 5 мм это будет сторона нового квадрата

Answer 2

Drawing a Square with a Perimeter of 12 cm

To draw a square with a perimeter of 12 cm, we can start by finding the length of one side of the square. Since a square has four equal sides, we can calculate the length of one side by dividing the perimeter by 4.

Perimeter of the square = 12 cm Length of one side = Perimeter / 4 = 12 cm / 4 = 3 cm

So, each side of the original square will be 3 cm.

Increasing the Sides by 1 cm 5 mm

To increase the sides of the square by 1 cm 5 mm, we add 1 cm 5 mm to each side of the original square.

Increased length of each side = 3 cm + 1 cm 5 mm = 3 cm + 1.5 cm = 4.5 cm

Drawing the New Figure

The new figure obtained by increasing the sides of the original square by 1 cm 5 mm is a larger square with each side measuring 4.5 cm.

Calculating the Perimeter of the New Figure

To calculate the perimeter of the new figure, we can use the formula: Perimeter = 4 * (Length of one side)

Substituting the length of one side as 4.5 cm: Perimeter = 4 * 4.5 cm = 18 cm

Therefore, the new figure obtained is a square with a perimeter of 18 cm.