Answer:
The lateral area is equal to
![LA=64\sqrt{3}\ m^{2}](https://tex.z-dn.net/?f=LA%3D64%5Csqrt%7B3%7D%5C%20m%5E%7B2%7D)
Step-by-step explanation:
In this problem the lateral area is equal to the area of one equilateral triangle multiplied by ![4](https://tex.z-dn.net/?f=4)
To find the area of one equilateral triangle calculate the height
The area of the triangle is equal to
![A=\frac{1}{2}bh](https://tex.z-dn.net/?f=A%3D%5Cfrac%7B1%7D%7B2%7Dbh)
we have
![b=8\ m](https://tex.z-dn.net/?f=b%3D8%5C%20m)
Applying the Pythagoras theorem
![h^{2}=8^{2} -4^{2} \\h^{2}=64-16\\ h=\sqrt{48} \\ h=4\sqrt{3}\ m](https://tex.z-dn.net/?f=h%5E%7B2%7D%3D8%5E%7B2%7D%20-4%5E%7B2%7D%20%5C%5Ch%5E%7B2%7D%3D64-16%5C%5C%20h%3D%5Csqrt%7B48%7D%20%5C%5C%20h%3D4%5Csqrt%7B3%7D%5C%20m)
The area of one triangle is equal to
![A=\frac{1}{2}(8)(4\sqrt{3})\ m^{2}](https://tex.z-dn.net/?f=A%3D%5Cfrac%7B1%7D%7B2%7D%288%29%284%5Csqrt%7B3%7D%29%5C%20m%5E%7B2%7D)
so
The lateral area is equal to
![LA=4\frac{1}{2}(8)(4\sqrt{3})=64\sqrt{3}\ m^{2}](https://tex.z-dn.net/?f=LA%3D4%5Cfrac%7B1%7D%7B2%7D%288%29%284%5Csqrt%7B3%7D%29%3D64%5Csqrt%7B3%7D%5C%20m%5E%7B2%7D)
It would cost them $900 for 45 screwdrivers.
Answer:
C
Step-by-step explanation:
She spent $80
Answer:
b
Step-by-step explanation:
Since it’s not x3 it must be +8 so if i were you i’d pick B