Question

Срочно! Сколько понадобиться проволоки для каркаса параллелепипеда со сторонами 50м, 40м, и 25м. (Надо найти S, L, V) и еще задача: надо найти площадь параллелепипеда со сторонами 12, 4, 20 см. Прошу помогите

Answer 1

Ответ:

Пошаговое объяснение:

a=50м

b=40м

с=25м

____

Всех ребер 12, по 4 на каждое измерение.

L=4а+4b+4c=4*50+4*40+4*25=

=200+160+100=460м длина каркаса.

S=2(ab+bc+ac)=2(50*40+40*25+50*25)=

=2(2000+1000+1250)=2*4250=8500м²

V=abc=25*50*40=50000м³

Ответ: L=460м; S=8500м²; V=50000м³

а=12см

b=4см

с=20см

S=2(ab+bc+ac)=2(12*4+4*20+12*20)=

=2(48+80+240)=2*368=736см²

Ответ: S=736м²

Answer 2

Calculation for Wire Needed for the Frame of a Parallelepiped

To find the amount of wire needed for the frame of a parallelepiped, we can use the formula: S = 2*(a*b + b*c + a*c), where a, b, and c are the dimensions of the parallelepiped.

Given dimensions: a = 50m, b = 40m, and c = 25m.

Using the formula: S = 2*(50*40 + 40*25 + 50*25) S = 2*(2000 + 1000 + 1250) S = 2*(4250) S = 8500 square meters

So, the surface area of the parallelepiped is 8500 square meters.

Calculation for Length of Wire Needed

To find the length of wire needed for the frame of the parallelepiped, we can use the formula: L = 4*(a + b + c), where a, b, and c are the dimensions of the parallelepiped.

Given dimensions: a = 50m, b = 40m, and c = 25m.

Using the formula: L = 4*(50 + 40 + 25) L = 4*(115) L = 460 meters

So, the length of wire needed for the frame of the parallelepiped is 460 meters.

Calculation for Volume of the Parallelepiped

To find the volume of the parallelepiped, we can use the formula: V = a*b*c, where a, b, and c are the dimensions of the parallelepiped.

Given dimensions: a = 50m, b = 40m, and c = 25m.

Using the formula: V = 50*40*25 V = 50000 cubic meters

So, the volume of the parallelepiped is 50000 cubic meters.

Calculation for Area of the Parallelepiped

To find the area of the parallelepiped, we can use the formula: A = 2*(ab + bc + ac), where a, b, and c are the dimensions of the parallelepiped.

Given dimensions: a = 12cm, b = 4cm, and c = 20cm.

Using the formula: A = 2*(12*4 + 4*20 + 12*20) A = 2*(48 + 80 + 240) A = 2*(368) A = 736 square centimeters

So, the area of the parallelepiped is 736 square centimeters.