To measure the weight of a 4×8 aluminum plate with a thickness of 2mm, 次の手順で計算できます:

面積を計算する: 初め, convert the dimensions of the 4×8 aluminum sheet to square meters (または平方センチメートル, 慣れている単位に応じて). For a 4×8 foot aluminum sheet, 面積は平方フィートで表すことができます (平方. フィート), これを平方メートルに変換できます (平方. メートル) または平方センチメートル (平方. cm).
1 square foot ≈ 0.0929 square meters
1 square foot ≈ 929 square centimeters
Calculate the volume: multiply the area by the thickness of the aluminum plate to get the volume of the aluminum plate. Note that the thickness here should be expressed in meters (メートル) or centimeters (cm).

Calculating Weight: The density of aluminum is usually expressed in grams per cubic centimeter (g/cm3). Aluminum has a density of about 2.7 grams per cubic centimeter. By multiplying the volume of the aluminum plate by the density of the aluminum, you can find the weight of the aluminum plate.

例えば, assuming that the aluminum sheet measures 4×8 足 and is 2mm thick:

Area = 4 フィート× 8 feet = 32 square feet ≈ 2.97 square meters
Volume = 2.97 square meters x 0.2 cm (2 mm to cm) = 0.594 cubic meters
Weight = 0.594 cubic meters x 2.7 grams per cubic centimeter ≈ 1,604.2 グラム
それで, this 2mm thick 4×8 aluminum plate weighs about 1,604.2 グラム, or about 1.6 kilograms.