# Math Help - [SOLVED] Density question

1. ## [SOLVED] Density question

Help! My 6th grade daughter has asked for help with this, and I can't even figure it out!

A sample of iron has the dimensions of 2 cm x 3 cm x 2 cm. If the mass of this rectangular-shaped object is 94 g, what is the density of iron?

Okay, I know the formula is D=M/V, but wouldn't I need the height of the triangle in order to determine the area first? Please help! I am lost!

2. volume of block can be calculated as 2 x 3 x 3 $cm^3$
= 18 $cm^3$

Mass is 94g
so density = M/V = 94/18 $g/cm^3$

3. Oh, is my face red!!!! I kept thinking this was a triangle! That's why I thought I needed the height! I have been busting my brain over this for hours, and the only problem was that I was misreading it. Even after I typed the question into the forum post, I still didn't catch it. When you typed the word "block," that did it for me! Thank you so much! It's either getting really late, or I'm getting really old!!!!