Answer:

Step-by-step explanation:
Given



Required
Determine the length of the base
The perimeter of an isosceles triangle is:



Collect Like Terms


Divide both sides by 7

To get the base, we substitute 19 for x in 


Answer:
Perimeter = 8x
Step-by-step explanation:
If I can see correctly, the area of the squares are x². Area is just s², so we can find one side by finding the square root of x², which is x. Now that we know that x is one side, we can count the amount of sides and multiply that number by x.
There are 8 sides, so the answer is P = 8x
Answer:
x is 42
X = 42
Step-by-step explanation: