Question

Сумма длин всех рёбер прямоугольного параллелепипеда равна 72 см, а два его измерения – 6 см и 8 см. Найдите третье измерение параллелепипеда. (Помогите пж поскорей..)

Answer 1

У прямоугольного параллелепипеда 12 рёбер, по 4 ребра каждого измерения.
72:4 = 18 см сумма длин всех измерений
6+8 = 14 см длина двух известных измерений
18-14 = 4 см длина неизвестного измерения.

Answer 2

Finding the Third Dimension of a Rectangular Parallelepiped

To find the third dimension of a rectangular parallelepiped, we can use the formula for the sum of the lengths of all the edges of the parallelepiped.

Given: - The sum of the lengths of all the edges of the parallelepiped is 72 cm. - Two of the dimensions of the parallelepiped are 6 cm and 8 cm.

Let's assume the third dimension of the parallelepiped is x cm.

To find the sum of the lengths of all the edges, we can use the formula: Sum of lengths of all edges = 4 * (Length + Width + Height)

Substituting the given values into the formula, we have: 72 cm = 4 * (6 cm + 8 cm + x cm)

Simplifying the equation, we get: 72 cm = 4 * (14 cm + x cm)

Dividing both sides of the equation by 4, we have: 18 cm = 14 cm + x cm

Subtracting 14 cm from both sides of the equation, we get: 4 cm = x cm

Therefore, the third dimension of the rectangular parallelepiped is 4 cm.

Please let me know if you need any further assistance!