Question

Задача:аквариум имеет форму прямоугольного параллелепипеда.Его боковые стенки стеклянные.Определите площадь поверхности стекла, если длина аквариума 50 см, ширина 25 см, а высота 30 см 5 класс заранее спасибо[email protected]@☆☆★★

Answer 1

50*25=1250(cм.кв) площадь основания
2(50+25)=150(см.кв) периметр основания
150*30= 4500(см.кв) площадь боковой поверхности
1250+4500=5750(см.кв) площадь поверхности стекла

Answer 2

Calculation of Glass Surface Area in a Rectangular Aquarium

To determine the surface area of the glass in a rectangular aquarium, we need to calculate the area of each side of the aquarium and then sum them up.

Given: - Length of the aquarium = 50 cm - Width of the aquarium = 25 cm - Height of the aquarium = 30 cm

To calculate the surface area of the glass, we need to consider the following sides of the aquarium: 1. Front and back sides: These are the sides with a length of 50 cm and a height of 30 cm. 2. Left and right sides: These are the sides with a width of 25 cm and a height of 30 cm. 3. Bottom side: This is the side with a length of 50 cm and a width of 25 cm.

Let's calculate the surface area of each side and then sum them up to get the total surface area of the glass.

1. Front and back sides: - Area = Length * Height = 50 cm * 30 cm = 1500 cm²

2. Left and right sides: - Area = Width * Height = 25 cm * 30 cm = 750 cm²

3. Bottom side: - Area = Length * Width = 50 cm * 25 cm = 1250 cm²

Now, let's sum up the areas of all the sides to get the total surface area of the glass:

Total Surface Area = Front and back sides + Left and right sides + Bottom side = 1500 cm² + 750 cm² + 1250 cm² = 3500 cm²

Therefore, the total surface area of the glass in the rectangular aquarium is 3500 cm².