# Bricklayer's Formula

### By Sasha Kozlov

**Why did I choose this project?**

**I chose this project because I like measuring things. I also like to work outdoors and this project allows you to do that.**

** What is this project about?**

**This project is about finding the formula about how much bricks are in the part of the wall. It is also about measuring the different parts of the brick wall .**

** Project**

**In the math book there is a formula for finding the amount of bricks in a part of the brick wall. It is N(the amount of bricks in a part of the brick wall) =7 *L(length of the part in a brick wall)*H(height of the part in a brick wall). Also this formula only works for Feet. So I measured a part of the brick wall. The length is 2 feet and the height is 2 feet. **

**Then what I did is that I counted the bricks and got 20 bricks.**

** So if we rewrite the formula we get 20=7*2*2 so I’m not sure if that’s true so I check 7*2 is 14 and multiply that by 2 that equals 28 and that’s not equal to 20. The number got bigger so try to change the 7 into a smaller number. First I picked 6. 6*2 is 12 and 12*2 is 24. The number is still too big. So instead of 6 I pick 5. 5*2 is 10 and 10*2 is 20. 20 does equal to 20. I think the formula N=7*L*H is wrong and the formula N=5*L*H is right but to make sure I measure another part of the wall with the different lengths and heights. I measured the length which is 5 feet now and the height which is 5 feet now.**

**I counted the bricks and got 125**

**First I try with the formula N=7*L*H, 7*5 is 35 and that multiplied by 5 is 175. 175 isn't equal to 125 so I try the formula N=5*L*H, 5*5 is 25 and 25 multiplied by 5 is 125. 125 is equal to 125 so the formula N=5*L*H is the formula for finding the amount of bricks that are in a part of a brick wall. **