Question

Помогите пожалуйста!!!!!! нужно срочнонайдите периметр и площадь прямоугольника со сторонами 7см и 20см

Answer 1

Периметр:
(7+20)*2=54 см
площадь:
7*20=140 см. кв.

Answer 2

Держи, пожалуйста...

Answer 3

Perimeter and Area of a Rectangle

To find the perimeter and area of a rectangle, we need to know the lengths of its sides. In this case, we have a rectangle with sides measuring 7 cm and 20 cm.

The perimeter of a rectangle is the sum of all its sides. In this case, the perimeter can be calculated by adding the lengths of the two adjacent sides and then multiplying the sum by 2:

Perimeter = 2 * (Length + Width)

Substituting the given values, we get:

Perimeter = 2 * (7 cm + 20 cm)

To find the area of a rectangle, we multiply the length by the width:

Area = Length * Width

Substituting the given values, we get:

Area = 7 cm * 20 cm

Now let's calculate the perimeter and area:

Perimeter = 2 * (7 cm + 20 cm) = 2 * 27 cm = 54 cm

Area = 7 cm * 20 cm = 140 cm²

Therefore, the perimeter of the rectangle is 54 cm and the area is 140 cm².

Please let me know if there's anything else I can help you with!