Question

q25. how do you get the density of the block shown below? * 215 440 100 215×440×100

Explanation:

Step1: Recall density formula

Density $
ho=\frac{m}{V}$, where $m$ is mass and $V$ is volume. For the block, first find its volume.

Step2: Calculate volume of block

The block is a rectangular - prism. Volume formula for rectangular - prism is $V = l\times w\times h$. Here, $l = 440$, $w = 100$, $h = 215$, so $V=440\times100\times215$. But to get density, we also need to know the mass of the block. Once we have mass $m$ and volume $V$, we use $
ho=\frac{m}{440\times100\times215}$. However, since the question only asks how to get density in terms of the given dimensions and we assume mass is known, we focus on volume calculation part.

Answer:

First find the volume of the block using the formula $V = 215\times440\times100$ (volume of rectangular - prism), and then divide the mass of the block by this volume to get the density. But just from the given dimensions, the first step to get density - related quantity is to calculate $215\times440\times100$ which is the volume.