Question

If cedar wood has a density of 0.54 g/cm³, what is the mass of a board with dimensions 20 cm x 5 cm x 255 cm?

A. 1377 g
B. 1323 g
C. 1092 g
D. 1305 g

Answer 1

The correct answer is option B. 1323 g.The mass of a cedar wood board with dimensions 20 cm x 5 cm x 255 cm is calculated by multiplying its volume with its density.

Step-by-step explanation:

To calculate the mass of the board, we can use the formula:

Mass = Density x Volume

Given that the density of cedar wood is 0.54 g/cm³ and the dimensions of the board are 20 cm x 5 cm x 255 cm, we can calculate the volume of the board:

Volume = Length x Width x Height

Volume = 20 cm x 5 cm x 255 cm = 25500 cm³

Now, we can substitute the values into the formula:

Mass = 0.54 g/cm³ x 25500 cm³ = 13770 g = 1377 g (rounded to the nearest gram)

Therefore, the mass of the board is 1323 g.