22.4
If the bottom side is 20 cm, then each line BE and CE would each be 10 cm.
Now, just focus on the top left triangle. You have one side with 20 cm, and the other side with 10 cm. You are left with the hypotenuse, which you need to figure out the value of.
Since this is a right triangle, you can use the Pythagorean theorem -> a^2 + b^2 = c^2 where c is the hypotenuse.
20^2 + 10^2 = c^2
400 + 100 = c^2
500 = c^2
22.36 = c
Answer:
I believe it is y = 9x + 12
The length is 14 how I know it.
you don't know the value of the length so you will represent length by "X", you know you get the volume multiplying height by width by length so you multiple all the values.
6×10(X)=840
10(X)=140
X=14
if you do not know this process in detail leave it in the comments and I'll explain it, for now the value of length will be 14
