The perimeter of a triangle is found by adding all the three sides.
Let's call the third side "x"
So,
6+9+x = 23
15+x = 23
x = 8
If it has 3 sides then it's a triangle.
Using the formula
where

and a=5 b=5 c=8
∴
10 = 2y + 4
6 = 2y
y = 3
18 = 10 + 2x
8 = 2x
x = 4
Answer:
b
Step-by-step explanation:
between gallons and Fluid Ounces.because The chart below shows the conversion
MP,
Both triangles share the letters MP in the same order and int he same place in their names, meaning that they share the side. <span />