Question

В ожидании Одиссея Пенелопа ткалапокрывало прямоугольной формы.Ширина покрывала 2м.За день она делала 640 рядов.Каждые 5 рядов увеличивали длину покрывала на 1 см.Чтобы продлить работу,Пенелопа ночью распускала половинусотканного покрывала.Найди площадь покрывала,сотканного Пенелопой к началу 5 дня.

Answer 1

640/5= 128см

128/2=64

 

 64*4=256см

 площадь = 2м + 256см = 4м 56 см

Answer 2

Calculation of the Area of the Blanket

To find the area of the blanket woven by Penelope by the beginning of the 5th day, we need to calculate the total length and width of the blanket.

Given information: - Width of the blanket: 2 meters - Penelope weaves 640 rows in a day - Every 5 rows, the length of the blanket increases by 1 centimeter

Let's break down the calculation step by step:

1. Calculate the total length of the blanket woven by Penelope by the beginning of the 5th day: - Penelope weaves 640 rows in a day - Every 5 rows, the length of the blanket increases by 1 centimeter - Therefore, the length of the blanket woven by Penelope in a day is 640 / 5 = 128 centimeters - By the beginning of the 5th day, the length of the blanket woven by Penelope is 128 * 5 = 640 centimeters

2. Calculate the area of the blanket: - Width of the blanket: 2 meters - Length of the blanket: 640 centimeters (converted to meters: 640 / 100 = 6.4 meters) - Area of the blanket = Length * Width = 6.4 * 2 = 12.8 square meters

Therefore, the area of the blanket woven by Penelope by the beginning of the 5th day is 12.8 square meters.