Answer:
try B for an answer, hope it helps
Answer:

Step-by-step explanation:
From C-A, it goes from y=1 to y=5, so that 4 units
From A-B, it goes from x = -1 to x = 4, that is 5 units
Now, to find distance from B to C, we need to use the distance formula:

Where the variables are the respective points of B and C,
B (4,5) & C(-1,1)
So x_1 =4, y_1=5, x_2=-1, y_2=1
Plugging into the formula we get:

Summing it all (perimeter is sum of 3 sides):
Distance = 
3rd answer choice is right.
Answer:
writing the steps of a solution in small pieces of code
Step-by-step explanation:
edg 2020
Answer:
Step-by-step explanation:
I think its the second one.
Answer:
40 Post-it notes
Step-by-step explanation:
10/2 = 5 on the side that measures 10"
16/2 = 8 on the side that measures 16"
5 x 8 = 40 post-it notes