Question

Длина оконного стекла 2 м 70 см, а ширина составляет ⅓ часть длины. По всему периметру стекла прикрепили воздухонепроницаемую резину. Какова длина этой резины?

Answer 1

1) 2м 70 см= 270 см длина
2)270x1/3=90см ширина
3)2x(270+90)=720 см периметр

Answer 2

Calculating the Length of the Rubber Seal

The length of the window glass is 2 meters and 70 centimeters, and the width is one-third of the length. To calculate the length of the rubber seal around the perimeter of the glass, we can follow these steps:

1. Calculate the Width of the Glass: - Width = 1/3 * Length - Width = 1/3 * 2m 70cm

2. Calculate the Perimeter of the Glass: - Perimeter = 2 * (Length + Width)

3. Calculate the Length of the Rubber Seal: - Length of Rubber Seal = Perimeter of the Glass

Let's calculate the width and then proceed to find the length of the rubber seal.

Calculation

1. Calculate the Width of the Glass: - Width = 1/3 * 2m 70cm - Width = 2m 70cm / 3 - Width = 0m 90cm

2. Calculate the Perimeter of the Glass: - Perimeter = 2 * (2m 70cm + 0m 90cm) - Perimeter = 2 * (3m 60cm) - Perimeter = 7m 20cm

3. Calculate the Length of the Rubber Seal: - Length of Rubber Seal = 7m 20cm

So, the length of the rubber seal around the perimeter of the glass is 7 meters and 20 centimeters.