Y = X/2 is directly proportional
Y = 2/X is not directly proportional
Hope this helps! :)
If it's a regular octahedron, then you can calculate it using the formula
![2\sqrt3a^2](https://tex.z-dn.net/?f=2%5Csqrt3a%5E2)
where
![a](https://tex.z-dn.net/?f=a)
is the length of the edge.
If it's not regular, you have to calculate the area of each side individually.
In any trapezoid, the area is given by
![A = \dfrac{(B+b)h}{2}](https://tex.z-dn.net/?f=%20A%20%3D%20%5Cdfrac%7B%28B%2Bb%29h%7D%7B2%7D%20)
where B and b are the two bases, and h is the height. You're given all these elements already, so you only need to plug the values in:
![A = \dfrac{(3+11)\cdot 8}{2} = \dfrac{14\cdot 8}{2} = 7\cdot 8 = 56](https://tex.z-dn.net/?f=%20A%20%3D%20%5Cdfrac%7B%283%2B11%29%5Ccdot%208%7D%7B2%7D%20%3D%20%5Cdfrac%7B14%5Ccdot%208%7D%7B2%7D%20%3D%207%5Ccdot%208%20%3D%2056%20)
Answer:
metric po
Step-by-step explanation:
measurements and metric units of measure
168,356 = 170,000
168,356 rounded to the nearest 10th thousand is 170,000 you are changing the 2nd digit, (thousand digit).