If it's a regular octahedron, then you can calculate it using the formula
where
is the length of the edge.
If it's not regular, you have to calculate the area of each side individually.
Answer:
It doesn't matter which way you do it, you'll still get the same answer. 19 is correct
Step-by-step explanation:
There is no solution (answer is 5-6x=-6x-1 which doesn’t work)
Answer: f(2)=156
Step-by-step explanation:
To solve this problem you must apply the proccedure shown below:
1. You have the following function:
2. Then, you must substitute x=2 into the function given in the exercise. Therefore, you have the following result: