Question

Найдите площадь поверхности и объем прямоугольного параллелепипеда , длина которого равна 12 см, ширина- 7.5, а высота- 10см

Answer 1

S=ab=12•7,5=90 кв.см.
V=abc=12•7,5•10=900 куб.см.

Answer 2

Calculation of Surface Area and Volume of a Rectangular Prism

To find the surface area and volume of a rectangular prism, we need to know its length, width, and height. In this case, the length is 12 cm, the width is 7.5 cm, and the height is 10 cm.

Surface Area: The surface area of a rectangular prism can be calculated by adding the areas of all its faces. For a rectangular prism with length (l), width (w), and height (h), the surface area (A) is given by the formula:

A = 2lw + 2lh + 2wh.

Substituting the given values, we have: A = 2 * 12 * 7.5 + 2 * 12 * 10 + 2 * 7.5 * 10 A = 180 + 240 + 150 A = 570 cm²

Therefore, the surface area of the rectangular prism is 570 cm².

Volume: The volume of a rectangular prism is calculated by multiplying its length, width, and height. The formula for volume (V) is:

V = lwh.

Substituting the given values, we have: V = 12 * 7.5 * 10 V = 900 cm³

Therefore, the volume of the rectangular prism is 900 cm³.

In summary, the surface area of the rectangular prism is 570 cm² and the volume is 900 cm³.

Let me know if there's anything else I can help you with!