Question

Длина прямоугольника равна 2 см 5 мм а ширина в 5 раз меньше вычисли периметр и площадь этого прямоугольника

Answer 1

2,5:5=0,5
Р=2(2,5+0,5)=6
S=2,5*0,5=1,25

Answer 2

Длинна=2см 5мм=25мм
ширина=25/5=5мм
P=2(25+5)=60мм
S=5*25=125мм^2
Ответ: периметр=60мм; площадь=125мм^2

Answer 3

Calculation of Perimeter and Area of the Rectangle

To calculate the perimeter and area of a rectangle, we need to know the length and width of the rectangle.

Given: - Length of the rectangle = 2 cm 5 mm - Width of the rectangle is 5 times smaller than the length

To find the perimeter of the rectangle, we use the formula: Perimeter = 2 * (Length + Width). To find the area of the rectangle, we use the formula: Area = Length * Width.

Let's calculate the perimeter and area step by step.

1. Convert the length from cm and mm to a single unit (mm): - 2 cm = 20 mm (1 cm = 10 mm) - 5 mm (already in mm)

Therefore, the length of the rectangle is 20 mm + 5 mm = 25 mm.

2. Calculate the width of the rectangle: - The width is 5 times smaller than the length. - Width = Length / 5 = 25 mm / 5 = 5 mm.

3. Calculate the perimeter: - Perimeter = 2 * (Length + Width) = 2 * (25 mm + 5 mm) = 2 * 30 mm = 60 mm.

4. Calculate the area: - Area = Length * Width = 25 mm * 5 mm = 125 mm².

Therefore, the perimeter of the rectangle is 60 mm and the area is 125 mm².