Question

Длинна коробки 28 см, а ширина 6 см и высота 3см.Найди площадь ее трех разных граней.

Answer 1

——————
168;84;18
——————

Answer 2

Calculating the Surface Area of the Box

To find the surface area of the box, we can calculate the areas of its three different faces: the top, the front, and the side.

1. Top Face: - The area of the top face is given by the formula: *length x width*. - Given length = 28 cm and width = 6 cm. - Therefore, the area of the top face = 28 cm x 6 cm = 168 cm².

2. Front Face: - The area of the front face is given by the formula: *length x height*. - Given length = 28 cm and height = 3 cm. - Therefore, the area of the front face = 28 cm x 3 cm = 84 cm².

3. Side Face: - The area of the side face is given by the formula: *width x height*. - Given width = 6 cm and height = 3 cm. - Therefore, the area of the side face = 6 cm x 3 cm = 18 cm².

Total Surface Area

The total surface area of the box is the sum of the areas of its three different faces: - Total Surface Area = Top Face Area + Front Face Area + Side Face Area - Total Surface Area = 168 cm² + 84 cm² + 18 cm² - Total Surface Area = 270 cm²

Therefore, the total surface area of the box is 270 cm².