Question

Аквариум имеет форму прямоугольного паралелепипеда.его боковые стены стеклянные.определи обьём и площу верха стекла если длина аквариума 50 см ширина 30 см а высота 40 см?

Answer 1

Объём:
50см*30 см* 40 см=1500*40=60000 см3 

Answer 2

Решение по действиям:

1)50*25=1250 (см кв) - площадь основания

2)2(50+25)=150 (см кв) - периметр основания

3)150*30=4500 (см кв) - произведение периметра основания и высоты, т.е. площадь боковой поверхности

4)1250+4500=5750 (см кв) - площадь поверхности стекла

 

5750см кв=57,5 дм кв

Answer 3

Calculation of Volume and Surface Area of the Aquarium

To calculate the volume and surface area of the rectangular parallelepiped aquarium with glass side walls, we can use the given dimensions:

- Length of the aquarium: 50 cm - Width of the aquarium: 30 cm - Height of the aquarium: 40 cm

Volume of the Aquarium:

The volume of a rectangular parallelepiped can be calculated by multiplying its length, width, and height. Therefore, the volume of the aquarium is:

Volume = Length x Width x Height

Substituting the given values:

Volume = 50 cm x 30 cm x 40 cm

Calculating the volume:

Volume = 60,000 cm³

Therefore, the volume of the aquarium is 60,000 cm³.

Surface Area of the Top Glass:

The surface area of the top glass can be calculated by multiplying the length and width of the aquarium. Since the top glass covers the entire top surface, its area will be the same as the area of the top surface of the aquarium. Therefore, the surface area of the top glass is:

Surface Area = Length x Width

Substituting the given values:

Surface Area = 50 cm x 30 cm

Calculating the surface area:

Surface Area = 1,500 cm²

Therefore, the surface area of the top glass is 1,500 cm².

Please note that the above calculations assume that the aquarium has no additional features or compartments that would affect its volume or surface area.