The measure of all 4 sides of a rhombus are equal so if one side is 20 cm, the other 3 are 20 cm as well. The perimeter is all of the sides added together, so 20 + 20 + 20 + 20 = 80
The perimeter is 80 cm.
(x-y)dx+xdy=0 = (x-y)dx=-xdy = (x-y)=-x*dy/dx = -(x-y)/x=dy/dx.
I'm not sure what you are solving for, but you can use this to solve from here.
Answer:
A and B tbh
Step-by-step explanation: there is only 5 prime numbers in 12 and A and B are 6 and 6 a ratio of 6:6
Thus both A and B will be right unless you can pick multiple its A and B
Context clues and look it up! we are here for moral support